Hong Kong Global Geopark: A Complete Guide to 13 Must-See Geological Wonders
- OutdoorHongKong
- Apr 16
- 3 min read
Updated: Apr 21
Hong Kong Global Geopark Intro
Hong Kong Global Geopark, established in 2009 and designated as a UNESCO Global Geopark in 2011, boasts stunning volcanic rock formations, sedimentary rock landscapes, and dramatic coastal erosion features. Divided into two major zones—the Northeast New Territories Sedimentary Rock Region and the Sai Kung Volcanic Rock Region—the park spans multiple islands and coastlines, making it a paradise for geology enthusiasts, photographers, and nature explorers.
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📚 Further Reading
📍 13 Must-Visit Geological Sites
1️⃣ Po Pin Chau: Supervolcano Remnant
Famous for its towering hexagonal volcanic rock columns (some reaching 100m high), Po Pin Chau was formed by a volcanic eruption 140 million years ago. The sea-carved arch here is a classic example of coastal erosion, perfect for geological studies.
2️⃣ High Island Reservoir East Dam: Giant Hexagonal Rock Columns
One of Hong Kong’s most accessible geological sites, the East Dam features massive hexagonal rock columns, some tilted—evidence of ancient lava flow patterns. A geological trail nearby makes it beginner-friendly.
3️⃣ Tai Long Wan: Sea Caves & Beach Paradise
Known for its wave-sculpted coastline, Tai Long Wan includes landmarks like Long Ke Cave and Ham Tin Beach, ideal for hiking, camping, and surfing. The clear rock layers here reveal the boundary between sedimentary and volcanic rocks.
4️⃣ Lai Chi Wo: Hakka Village & Mangrove Forest
Home to a 400-year-old Hakka walled village, Lai Chi Wo also has Hong Kong’s largest mangrove forest and ancient coral communities, set in a sedimentary rock zone—great for eco-cultural tours.
5️⃣ Ung Kong Group: Sea Stacks & Diving Hotspot
Comprising islands like Bluff Island, Wang Chau, and Basalt Island, this group is famous for its sea stacks and arches. Basalt Island’s Lan Kwan Kok is a top diving spot with crystal-clear waters.
6️⃣ Ninepin Group: Volcanic Rock Columns & Hidden Caves
The North Ninepin Island’s “Silver Bottle Neck Tunnel” and South Ninepin Island’s “Tiger’s Mouth Cave” showcase some of Hong Kong’s most spectacular volcanic rock formations. Best explored by boat.
7️⃣ Kau Sai Chau: Golf Course & Former Hakka Village
Hong Kong’s only golf course island, Kau Sai Chau’s southern tip once housed a Hakka fishing village.
8️⃣ Sharp Island: Tombolo & “Pineapple Bun” Rocks
Famous for its natural tombolo (walkable at low tide) and weathered granite “pineapple bun rocks”, Sharp Island is perfect for a half-day trip.
9️⃣ Yim Tin Tsai: Hakka Culture & Salt Pans
A unique Catholic Hakka village with century-old salt pans and wetland ecosystems—ideal for cultural-geology tours.
🔟 Ap Chau: Red Breccia Wonder
Shaped like a duck, this island is covered in rust-red breccia (compressed sedimentary rock), offering unique photo opportunities.
1️⃣1️⃣ Kat O: Sedimentary Rocks & Fishing Village
Kat O’s distinct sedimentary rock layers and traditional fishing culture feature tuff, breccia, siltstone, and limestone.
1️⃣2️⃣ Port Island & Wong Chuk Kok Tsui: Hong Kong’s Oldest Rocks
The “Devil’s Fist” at Wong Chuk Kok Tsui is a 400-million-year-old sedimentary rock—the oldest in Hong Kong—with striking reddish hues.
1️⃣3️⃣ Tung Ping Chau: Layered Shale & Wave-Cut Platform
Known for its distinctive shale formations, Tung Ping Chau’s “Hok Ngam Teng” and “Dragon’s Back” are iconic. Low tide reveals rich tidal zone wildlife.
🚤 How to Explore
✅ DIY Trips: Sharp Island, Tung Ping Chau, Ap Chau, Kat O (accessible by ferry/rental boat)
✅ Guided Tours: Ninepin Group, Ung Kong Group, Bluff Island (requires boat charter)
✅ Hiking Routes: Lai Chi Wo, High Island East Dam (combine geology & culture)
📌 Practical Tips
Best Season: April–October (calmer seas)
Essentials: Non-slip shoes, sun protection, plenty of water
Conservation: No rock collecting, take all trash with you
🌿 Final Thoughts
The Hong Kong Global Geopark blends volcanic columns, coastal erosion, sedimentary layers, and human history into a natural classroom just outside the city. Whether you’re after a relaxing half-day trip or an in-depth adventure, there’s a trail for you! 🌏✨
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