2022.04.15 FRI 【Hiking • 017】
High Island Reservoir • East Dam . Biu Tsim Kok . Po Pin Chau
萬宜水庫 • 東壩 . 標尖角 . 破邊洲

This trail is a world-class visual feast that showcases Hong Kong’s unique geological wonders and stunning coastlines. Starting from the 【East Dam (東壩)】, you first ascend to the 【Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)】 for a panoramic view of the High Island Reservoir and the vast seas of Leung Shuen Wan. Afterwards, stroll along the 【High Island Geo Trail (萬宜地質步道)】 to get an up-close look at the magnificent hexagonal rock columns. Along the way, you’ll witness nature’s craftsmanship, including the profound 【Kwun Mun Hole • Sea Cave (官門遺洞 • 海蝕洞)】 and the massive 【Breakwater (防波堤)】 made of giant dolos blocks, offering a striking contrast between human engineering and natural forces. The second half of the journey takes you into more rugged and pristine territory. You’ll pass the tranquil 【Chicken Leg Wan (雞脾灣)】 and the hidden, mystical 【Kim Chu Wan (撿豬灣)】, where you can enjoy crystal-clear waters and rocky shores. The adventure culminates at the iconic 【Po Pin Chau (破邊洲)】, a sea stack that looks as if it were split from the mainland by a giant axe. Looking out at its unique tubular rock columns provides the most breathtaking finale to this journey through the Global Geopark. The entire route covers approximately 12 km and takes about 5 hours to complete. This scenic trail is packed with stunning geological wonders and natural landscapes, making it a perfect choice for intermediate hikers looking for a rewarding challenge.

Route:

East Dam (東壩) → Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台) → High Island Geo trail (萬宜地質步道) → Kwun Mun Hole • Sea Cave (官門遺洞 • 海蝕洞) → Dolosse / Breakwater (防波堤) → Chicken Leg Wan (雞脾灣) → Kim Chu Wan (撿豬灣) → Po Pin Chau (破邊洲)

Duration
7.1 hrs
Distance
7.1 km
Highest Point
171 m
Difficulty
2 m
Explore the Route
daydreamer.hk. .

Route Overview

East Dam (東壩) → Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台) → High Island Geo trail (萬宜地質步道) → Kwun Mun Hole • Sea Cave (官門遺洞 • 海蝕洞) → Dolosse / Breakwater (防波堤) → Chicken Leg Wan (雞脾灣) → Kim Chu Wan (撿豬灣) → Po Pin Chau (破邊洲)


【Start】 Setting off from the 【East Dam (東壩)】, you’ll first walk along a flat concrete path. This section is well-shaded and very easy to tackle. Shortly after starting, you’ll pass the 【East Dam • Pavilion (東壩 • 涼亭)】, which is a great spot to take a breather. Continuing on, you will reach the 【Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)】, which offers a stunning 270-degree panoramic view. From here, you can overlook the entire East Dam and 【Long Ke Wan (浪茄灣)】, while spotting 【Tsang Pang Kok Tsui (罾棚角咀)】 and 【Po Pin Chau (破邊洲)】 in the distance.


【Mid-Section】 Moving on from the viewing platform, you’ll arrive at the 【High Island Geo Trail (萬宜地質步道)】. This is one of Hong Kong’s most famous geological landmarks, where you can see world-class hexagonal rock columns, fault breccia, and S-shaped curved columns. These spectacular wonders were formed by a super-volcano eruption 140 million years ago. Following the trail leads you to the 【Kwun Mun Hole (官門遺洞)】 and the 【Sea Cave (海蝕洞)】. The Kwun Mun Hole is a well-preserved relic from the Qing Dynasty (清朝), offering a glimpse into Hong Kong’s history, while the Sea Cave — formed by relentless wave erosion—features amazing natural echoes that are truly impressive.
Continuing past the cave, you’ll reach the 【Breakwater (防波堤)】. Composed of thousands of massive dolos blocks, it is incredibly grand and serves as an ideal photo spot to capture the majestic sea views and the sheer scale of the engineering.


【Finish】 Next, follow the trail to 【Chicken Leg Wan (雞脾灣)】, a beautiful beach equipped with camping facilities that makes for a perfect rest stop. Keeping along the path, you’ll hit 【Kim Chu Wan (撿豬灣)】, another scenic beach where you can relax and enjoy the natural surroundings.
Finally, a short trek from the beach leads you to the iconic 【Po Pin Chau (破邊洲)】. This unique geological site features breathtaking sea cliffs and extraordinary rock formations. After taking in the sights of Po Pin Chau, head back the way you came to the 【East Dam • Pavilion (東壩 • 涼亭)】 to wrap up your hiking adventure.


Duration
7.1 hrs
Distance
7.1 km
Highest Point
171 m
Scenery
3.5 ⭐️
Difficulty
2 ⭐️
Exposure Index
5 ⭐️
. .

Here are the reference statistics for this journey:

Total Ascent
228 m
Total Descent
227 m
Moving Speed
3.2 km/h
Average Speed
1 km/h
Moving Time
2.1 hrs
Total Journey Time
7.1 hrs

Related Videos

Transport Guide

START

🚩

Saikung • Pier (西貢 • 碼頭)

  1. Take a taxi directly to the 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】.
  2. (Saturdays, Sundays, and Public Holidays only): You can take 《Bus • 94》 to 【Pak Tam Chung (北潭涌)】, then transfer to 《Green Minibus • 9A》 to reach the 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】.
西貢碼頭 • 的士站
👉🏻

END

🏁

High Island Reservoir • East Dam 《Pavilion》

  1. Take a taxi directly back to 【Sai Kung • Town Centre (西貢 • 市中心)】.
  2. (Saturdays, Sundays, and Public Holidays only): You can take 《Green Minibus • 9A》 to 【Pak Tam Chung (北潭涌)】, then transfer to 《Bus • 94》 to return to 【Sai Kung • Town Centre (西貢 • 市中心)】.
東霸 • 涼亭《2》

Route Breakdown
🚩 Start 《East Dam → Biu Tsim Kok → High Island Geo Trail》

1. 📍 Start: East Dam • Pavilion

East Dam Pavilion (東壩 • 涼亭)

If you take a taxi, you can get off at the 【East Dam • Pavilion (東壩 • 涼亭)】, where public toilets are available for visitors. In front of the 【East Dam • Pavilion】, there is a concrete path leading to 【Long Ke Village (浪茄村)】, which also serves as the starting point for the first attraction of this trip, the 【Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)】.

High Island Geo Trail • Information Board (萬宜地質步道 • 地圖資訊板)

Next to the 【East Dam • Pavilion (東壩 • 涼亭)】, you’ll find an information board for the 【High Island Geo Trail (萬宜地質步道)】. Before setting off, it’s worth stopping here to get a better sense of the attractions and to plan your walking route.

Northeast New Territories • Sedimentary Rock Region (新界東北 • 沉積岩園區)

The 【Northeast New Territories Sedimentary Rock Region (新界東北沉積岩園區)】 provides a relatively complete record of Hong Kong’s geological history over approximately 400 million years. The primary rocks include the sandstone and conglomerate exposed at 【Wong Chuk Kok Tsui (黃竹角咀)】, which are terrestrial and shallow marine sedimentary rocks from the 【Devonian Period (泥盆紀)】 of the Late Paleozoic era (approx. 400 million years ago).

Additionally, there are marine sandstone and mudstone from the 【Permian Period (二疊紀)】 (approx. 280 million years ago) outcropping at 【Ma Shi Chau (馬屎洲)】, as well as Early Jurassic marine sandstone and siltstone (approx. 180 million years ago) on both sides of the 【Tolo Channel (赤門海峽)】.

The red sandstone, siltstone, conglomerate, and breccia (approx. Late Cretaceous) found at 【Port Island / Chek Chau (赤洲)】, 【Double Haven / Yan Chau Tong (印洲塘)】, and several islands in 【Mirs Bay / Dapeng Wan (大鵬灣)】 indicate an arid terrestrial geological environment at that time. Finally, the siltstone and shale exposed at 【Tung Ping Chau (東平洲)】 belong to the 【Paleogene Period (古近紀)】 (approx. 56 – 32 million years ago), making it the youngest rock formation in Hong Kong. These sedimentary rocks, shaped by varying geological and geographical conditions, have formed a diverse array of geomorphological landscapes.

💡 Excerpt from:

2. 📍 Biu Tsim Kok • Viewing Platform | Signpost

標尖角觀景台 • 路牌《1》

Biu Tsim Kok • Viewing Platform | Signpost 《I》

The signpost indicates that 【Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)】 is about 900 meters away, which takes approximately 30 minutes.

3. 📍 Distance Post • M019 《I》

標距柱 • M019 《1》

Distance Post • M019 《I》

Grid Reference: KK 295 757.

4. 📍 MacLehose Trail • Section 1 《II》

麥理浩徑 • 第1段《2》

MacLehose Trail • Section 1 (麥理浩徑 • 第1段) 《II》

The initial section leading to 【Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)】 consists of relatively easy-to-walk concrete paths.

5. 📍 MacLehose Trail • Section 1 《III》

標尖角觀景台 • 路牌《2》

Biu Tsim Kok • Viewing Platform | Signpost 《II》

he sign shows that the 【Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)】 is now 500 meters away, about a 15-minute walk.

6. 📍 Biu Tsim Kok 《I》

Long Ke Wan (浪茄灣)

Along the mountain path to the viewing platform, enjoy the open mountain views on the left and the beautiful coastline of 【Long Ke Wan (浪茄灣)】. Nearby peaks include 【Sai Wan Shan (西灣山)】, 【Tung Wan Shan (東灣山)】, and 【Lo Tei Tun (螺地墩)】. In the far distance, you can spot 【Ma On Shan (馬鞍山)】 and 【Ngau Ngak Shan (牛押山)】.

7. 📍 Biu Tsim Kok • Viewing Platform

Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)

After walking about 1 km from the start, you arrive at the first major landmark: 【Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)】.

📷 View towards Long Ke (往浪茄方向):

  • You can see 【Lo Tei Tun (螺地墩)】, 【Long Ke (浪茄)】, 【Long Ke Tsai (浪茄仔)】, 【Sai Wan Shan (西灣山)】, 【Tung Shan (東山)】, 【Cheung Ngam Teng (長岩頂)】, 【Tai Yue Ngam Teng (睇魚岩頂)】, 【Tsang Pang Kok Teng (罾棚角頂)】, and 【Conical Island / Fan Tsang Chau (飯甑洲)】.

📷 View towards Fa Shan (往花山方向):

  • You can see the 【East Dam (東壩)】, 【Po Pin Chau (破邊洲)】, 【Wang Chau (橫洲)】, 【Basalt Island / Fo Shek Chau (火石洲)】, 【Bluff Island / Sha Tong Hau Shan (沙塘口山)】, 【Fa Shan (花山)】, 【High Junk Peak / Diu Yue Yung (釣魚翁)】, 【Miu Tsai Tun (廟仔墩)】, 【Ping Pai (平排)】, and 【Pak Ah Teng (北丫頂)】.

8. 📍 Biu Tsim Kok 《II》

View of East Dam from Above (標尖角 • 腳下東壩)

As you head from the viewing platform back towards the dam, looking toward 【Fa Shan (花山)】 reveals the 【East Dam (東壩)】, 【Po Pin Chau (破邊洲)】, 【Chicken Leg Wan (雞脾灣)】, and the 【Kwun Mun Hole (官門遺洞)】.

9. 📍 Biu Tsim Kok 《III》

山路小徑

Mountain Path

After passing the viewing platform, follow the dirt trail to loop back towards the 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】.

10. 📍 Biu Tsim Kok 《IV》

兜了一圈

Completing the Loop

After circling around the 【Biu Tsim Kok (標尖角)】 headland, you will arrive back at the initial entrance.

11. 📍 MacLehose Trail • Section 1 《IV》

MacLehose Trail / East Dam / Long Ke • Signpost (麥理浩徑 / 東壩 / 浪茄 • 路牌)

Having completed the loop around the headland, you are back at the main junction ready for the next section.

12. 📍 MacLehose Trail • Section 1 《V》

遙望 • 花山

Mountain Path

After passing the 【Biu Tsim Kok • Viewing Platform (標尖角 • 觀景台)】, follow the mountain path to head back towards the 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】.

13. 📍 Distance Post • M019 《II》

標距柱 • M019《2》

Distance Post • M019 《II》

Grid Reference: KK 295 757.

14. 📍 High Island Reservoir • Notice Board

萬宜水庫 • 告示牌

High Island Reservoir • Notice Board (萬宜水庫 • 告示牌)

After completing the loop around 【Biu Tsim Kok (標尖角)】, you will arrive back at the starting point, 【East Dam Pavilion (東壩 • 涼亭)】. You will see standard reservoir notice boards nearby, with reminders such as: “No releasing of animals, feeding, polluting water sources, swimming, or letting pets play in the water” and “No fishing without a valid license.” Please follow these rules and be a responsible citizen.

15. 📍 High Island Geo Trail 《I》

六角岩柱

Hexagonal Rock Columns (六角岩柱)

From the 【East Dam Pavilion (東壩 • 涼亭)】, continue towards the next attraction, the 【High Island Geo Trail (萬宜地質步道)】. The hexagonal rock columns on your left are the iconic landmarks of the 【East Dam (東壩)】.

16. 📍 High Island Geo Trail 《II》

萬宜地質步道《2》

Looking up at the East Dam (昂望 • 東壩)

As you walk down the 【High Island Geo-trail (萬宜地質步道)】 to the base of the dam, you can look up at the towering structure of the 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】.

17. 📍 High Island Geo Trail 《III》

S-shaped Rock Columns (S 形岩柱)

While walking along the trail, you’ll see magnificent rock walls with uniquely twisted columns formed by natural forces. When these hexagonal columns first formed, they were cooling slowly inside the caldera and were as soft as plasticine. It is believed that due to earthquakes or regional subsidence, they were compressed and distorted into these 【S-shaped rock columns (S 形狀岩柱)】.

18. 📍 High Island Geo Trail 《IV》

防波堤 • 資訊板

Breakwater • Information Board (防波堤 • 資訊板)

The 【East Dam (東壩)】 features a unique double-structure design. The seaward side is reinforced by a 【Breakwater (防波堤)】 made of over 7,000 interlocking dolos blocks to protect the main dam from wave erosion. Originally a South African invention from over 70 years ago, these blocks effectively break up waves and absorb their impact. They are widely used for seawalls, typhoons shelters, land reclamation, and even as artificial reefs.

19. 📍 High Island Geo Trail 《V》

水深危險 • 告示牌

Danger: Deep Water Notice (水深危險 • 告示牌)

Beyond the rock formations, the 【High Island Geo-trail (萬宜地質步道)】 also features a vast lake where you can enjoy a scenic walk along its edge.

20. 📍 High Island Geo Trail 《VI》

Short • Trig Pillar (矮 • 三角測量石柱)

You might spot a short, white cylindrical pillar on the trail—this is a miniature 【Trigonometrical Station (三角測量石柱)】, likely used for local surveying.

21. 📍 High Island Wooden Boardwalk

Koi under the Boardwalk (木橋下 • 錦鯉)

In the lake beneath the 【East Dam • Wooden Boardwalk (東壩 • 木橋步道)】, you can see many koi fish swimming around.

22. 📍 Sea Cave • Kwun Mun Hole

海蝕洞 • 官門遺洞《全景》

Sea Cave • Kwun Mun Hole (海蝕洞 • 官門遺洞) 《Panorama》

This is a natural cave formed by wave erosion, known as a 【Sea Cave (海蝕洞)】, a common coastal feature in the 【Saikung (西貢)】 region.

Sea Cave • Kwun Mun Hole (海蝕洞 • 官門遺洞)

Before the reservoir was built, this cave faced the open sea and grew deeper through constant wave action. After the reservoir was completed in 1978, the breakwater effectively blocked the waves, stopping the erosion process. As a result, the cave remains perfectly preserved in its original form.

23. 📍 High Island Geo Trail 《VII》

East Dam • The Vast Lake (東壩 • 遼闊的湖泊)

In addition to the unique hexagonal rocks, the 【High Island Geo-trail (萬宜地質步道)】 features a vast, tranquil lake, allowing visitors to enjoy a scenic stroll along the waterfront.

24. 📍 High Island Geo Trail 《VIII》

錨形 • 石堤

Anchor-shaped • Breakwater (錨形 • 石堤)

The dolos blocks used at the 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】 feature an 『I-shaped』 or 『Double-T』 structure. Made of reinforced concrete, each individual block weighs up to 25 tons.

25. 📍 High Island Reservoir • East Dam

High Island Reservoir • East Dam (萬宜水庫 • 東壩)

The 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】 utilizes a unique dual-structure design. An additional 【Breakwater (防波堤)】, composed of over 7,000 interlocking dolos blocks, was installed on the seaward side to protect the main dam from wave erosion.

Breakwater • Anchor-shaped Dolos Wall (防波堤 • 錨形石堤)

The dolos blocks used for the main dam are designed with an 『I-shaped』 or 『Double-T』 structure, constructed from steel-reinforced concrete and weighing 25 tons each. The buffer zone between the 【Breakwater (防波堤)】 and the main dam further minimizes the impact of massive waves on the primary structure.

Route Breakdown
🏁 Finish 《Chicken Leg Wan (雞脾灣) → Kim Chu Wan (撿豬灣) → Po Pin Chau (破邊洲)》

26. 📍 High Island Reservoir • Breakwater 《I》

Cofferdam • Notice Board (圍堰壩 • 告示牌)

The 【Cofferdam • Notice Board (圍堰壩 • 告示牌)】 reminds visitors that since there are no railings on the breakwater, everyone must be extremely careful and avoid walking too close to the edge.

27. 📍 High Island Reservoir • Breakwater 《II》

Anchor-shaped Dolos Wall (錨形石堤)

Dolos blocks were originally invented by engineers in 【South Africa (南非)】 over 70 years ago. Their unique shape effectively breaks up waves and absorbs their impact. They are widely used for seawalls and typhoon shelters, as well as for land reclamation and the creation of artificial reefs.

28. 📍 Po Pin Chau Trail • Entrance

破邊洲徑 • 入口

Po Pin Chau Trail • Entrance (破邊洲徑 • 入口)

Walking to the very end of the 【High Island Reservoir • Breakwater (萬宜水庫 • 防波堤)】, you will find the entrance to the trail for the next destination, 【Po Pin Chau (破邊洲)】.

29. 📍 Po Pin Chau Trail  《I》

Po Pin Chau Trail (破邊洲徑) 《I》

Following the mountain path straight ahead leads to 【Po Pin Chau (破邊洲)】. Alternatively, you can head down the path to your left to visit 【Chicken Leg Wan (雞脾灣)】 first.

30. 📍 雞脾灣

雞脾灣

Chicken Leg Wan (雞脾灣)

Directly ahead is 【Chicken Leg Wan (雞脾灣)】. It is a rocky beach; aside from the seawater, stones, and some washed-up debris, there isn’t much to see here.

31. 📍 Po Pin Chau Trail  《II》

腳下 • 撿豬灣《1》

Looking Down at Kim Chu Wan (腳下 • 撿豬灣) 《1》

The rocky shore below your feet is 【Kim Chu Wan (撿豬灣)】.

32. 📍 Po Pin Chau Trail  《III》

破邊洲徑《3》

Po Pin Chau Trail (破邊洲徑) 《III》

Continue climbing up the mountain path towards 【Po Pin Chau (破邊洲)】.

33. 📍 Po Pin Chau Trail  《IV》

破邊洲徑《4》

Po Pin Chau Trail (破邊洲徑) 《IV》

Keep heading up the steps; once you cross the peak ahead, you will reach 【Po Pin Chau (破邊洲)】.

34. 📍 Heart of Hong Kong • Kim Chu Wan

香港之心 • 撿猪灣《1》

Heart of Hong Kong • Kim Chu Wan (香港之心 • 撿豬灣) 《I》

Looking down at 【Kim Chu Wan (撿豬灣)】, do you see a heart shape?

Heart of Hong Kong • Kim Chu Wan (香港之心 • 撿豬灣) 《II》

If you do, that is the legendary 『Heart of Hong Kong』.

35. 📍 Po Pin Chau

Po Pin Chau (破邊洲)

Starting from the 【East Dam Pavilion (東壩 • 涼亭)】, passing through 【Biu Tsim Kok (標尖角)】, the 【High Island Geo-trail (萬宜地質步道)】, the 【East Dam • Breakwater (東壩 • 防波堤)】, and past 【Chicken Leg Wan (雞脾灣)】 and 【Kim Chu Wan (撿豬灣)】, you have finally reached the final landmark, 【Po Pin Chau (破邊洲)】, after a 5.5 km trek.

破邊洲 • 十字架

After traveling all this way to 【Po Pin Chau (破邊洲)】, besides admiring nature’s masterpiece—the 【Hexagonal Rock Columns (六角形石柱)】—don’t forget to take a photo at the famous 《Cross (十字架)》 check-in spot.

36. 📍 Po Pin Chau Trail  《V》 | Return

Looking Back • East Dam (回望 • 東壩)

At 【Po Pin Chau (破邊洲)】, besides 《The Cross》 and the 《Hexagonal Rock Columns》, you can also look back to enjoy views of 【Fa Shan (花山)】, the 【East Dam (東壩)】, and 【Biu Tsim Kok (標尖角)】, along with various distant mountain peaks and coastal islands.

37. 📍 Po Pin Chau Trail  《VI》 | Return

Fa Shan Au (花山坳)

We won’t be ascending 【Fa Shan (花山)】 during this trip, but I hope to have the chance to explore it next time.

38. 📍 Finish: East Dam Pavilion / Sai Kung Man Yee Road / West Dam

東霸 • 涼亭《2》

East Dam • Pavilion 《II》

After trekking approximately 7.1 km, we have completed the loop and returned to our starting point, the 【East Dam Pavilion (東壩 • 涼亭)】.
西貢 • 萬宜路

Sai Kung • Man Yee Road (西貢 • 萬宜路)

This geological journey at the 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】 allowed us to admire one of Hong Kong’s grandest constructions alongside nature’s own masterpieces. Beyond the feast for the eyes provided by the beautiful scenery, we also gained some geological knowledge, making this a truly worthwhile trip.
萬宜水庫 • 西壩

High Island Reservoir • West Dam (萬宜水庫 • 西壩)

On the taxi ride back from the 【High Island Reservoir • East Dam (萬宜水庫 • 東壩)】, you will pass the 【High Island Reservoir • West Dam (萬宜水庫 • 西壩)】. If you catch it during sunset, the breathtaking view is equally enchanting.