Little Taiwan Cave on Wang Chau: Hong Kong's Geopark Sea Arch That Looks Like a Map

SEO focus keyword: Little Taiwan Cave Wang Chau
Secondary keywords: Wang Chau sea arch Hong Kong Geopark, Little Taiwan Cave Splitdyboat, Sai Kung Four Sea Arches, Hong Kong UNESCO Global Geopark boat tour

---

A Sea Cave That Looks Like Taiwan

There's a sea arch in Hong Kong's UNESCO Global Geopark that bears an uncanny resemblance to the island of Taiwan. It's called Little Taiwan Cave (小台灣洞), originally known as Wang Chau Kok Cave (橫洲角洞), and it's one of the Four Great Sea Arches of the East Sea—the most famous sea arches in Hong Kong waters.

The name is simple: the opening of the arch is shaped like the island of Taiwan. Once you see it from the water, you can't unsee it.

Little Taiwan Cave sits on Wang Chau (橫洲), an island in the Ung Kong Group (甕缸群島) of Sai Kung. The arch is formed from the same hexagonal volcanic rock columns that make the Geopark famous—columns created roughly 140 million years ago when ancient volcanic ash cooled and contracted into polygonal patterns. Wave erosion over millennia carved through the rock, creating the arch you see today.

---

How to See Little Taiwan Cave

By Boat: The Only Practical Way

Wang Chau sits within the core protection area of the Hong Kong UNESCO Global Geopark. There are no public piers and no trails around this island—the only way to see Little Taiwan Cave is from the water.

Splitdyboat's Guided Hong Kong UNESCO Global Geopark Tour runs this route directly. The Geopark Four Sea Arches Volcano Sightseeing Tour departs from Sai Kung Pier and includes Little Taiwan Cave as a boat-side sightseeing stop—the vessel slows down so you can see the arch and its hexagonal column walls up close.

The tour is offered in two editions:

• Speedboat edition (about 2 hours): faster, more adventurous, covers more ground in less time

• Yacht edition (4–7 hours): more stable, air-conditioned, includes land stops and is suitable for all ages

Splitdyboat is the only operator with access to exclusive zones within the Geopark, with experienced captains and trained geology guides who know these waters.

What You'll See

From the boat, you'll get a clear view of the arch opening and the surrounding hexagonal rock columns. The cave is a drive-by sightseeing stop—the boat does not land on Wang Chau, and passengers do not disembark here. The guide will point out the Taiwan-shaped opening and explain how the arch formed through volcanic activity and marine erosion.

---

Practical Details for the Splitdyboat Tour

Tour: Geopark Four Sea Arches Volcano Sightseeing Tour (Speedboat or Yacht Edition)
Stop: Wang Chau – Little Taiwan Cave (boat-side sightseeing, no landing)
Departure: Sai Kung Pier (meeting point: Sai Kung Seafood Street Archway)
Duration: 2 hours (speedboat) or 4–7 hours (yacht edition)
Price: From HKD $480 per person (speedboat edition, yacht edition)
Suitable for: Speedboat edition is not recommended for pregnant women, people with back problems, or those prone to seasickness. The yacht edition is suitable for all ages, including children and elderly.

What to bring: Hat, sunscreen, camera, water, comfortable clothes and shoes.

---

FAQ

Can I land on Wang Chau to see Little Taiwan Cave up close?
No. Wang Chau is in a core protection area with no public access. Little Taiwan Cave is viewed from the boat only.

Is Little Taiwan Cave included in the Splitdyboat Geopark tour?
Yes—it's a scheduled stop on the Geopark Four Sea Arches Volcano Sightseeing Tour.

Why is it called Little Taiwan Cave?
The opening of the sea arch is shaped like the island of Taiwan. Its original name is Wang Chau Kok Cave.

What else will I see on the tour?
The route also passes the Organ Cliff, God Cut Strait, Sea Palace, and other sea arches and volcanic formations in the Geopark.

---

Final Thoughts: The Arch You'll Recognize Instantly

Little Taiwan Cave is one of those sights that sounds like a gimmick until you're actually there, looking at a sea arch that genuinely resembles a map of Taiwan, carved into 140-million-year-old volcanic rock.

You can't hike to it. You can't swim to it safely. The boat is the only way in.

👉 Book your Splitdyboat Guided Hong Kong UNESCO Global Geopark Tour at splitdyboat.com — daily departures from Sai Kung Pier, with Little Taiwan Cave waiting on the route.

This blog post is sponsored by Splitdyboat.

 

🌋 Ready to See the Hong Kong Most People Never See?

This tour is brought to you by Splitdyboat — the leading UNESCO Global Geopark tour operator in Hong Kong, running daily departures.

Why travellers trust Splitdyboat:

✅ Licensed Travel Agent in Hong Kong — officially registered in October 2025 (Licence No. 354796), fully compliant with local travel regulations and protected booking arrangements 

✅ 30,000+ participants served last year

✅ Founded by Hong Kong nature enthusiasts — Hansley and Kate, creators behind one of Hong Kong's most-followed outdoor YouTube channels (125K+ subscribers, 160K+ social followers combined), built Splitdyboat to make Geopark tours accessible and affordable 

✅ Professional guides with geology expertise — every tour includes a trained guide who shares geological, historical, and cultural insights, not just a boat ride 

✅ The only operator with access to exclusive Geopark zones — experienced captains and guides who know these waters intimately 

✅ Trusted by major brands — partnerships with Ocean Park Hong Kong, Crowne Plaza, YHA, and HKYC 

👉 Book your spot now at splitdyboat.com — payment and booking are complete in minutes, and your spot is automatically secured.

This blog post is sponsored by Splitdyboat