Bai Tu Long Bay
The island-filled bay north-east of Ha Long, with hundreds of limestone and schist islands and the Bái Tử Long National Park.
Updated 3 November 2026
Bai Tu Long Bay lies in the Gulf of Tonkin north-east of Ha Long Bay and takes in the sea of the Vân Đồn special zone in Quảng Ninh, with Cô Tô to the east and the mainland around Cẩm Phả and Cái Bầu island to the west. Hundreds of islands, large and small, belong to its Vân Hải chain, and they are of limestone and of schist. Ha Long Bay, Bai Tu Long to its north-east and Cát Bà to its south-west form one larger area with similar geology, landforms, climate and culture, and the name comes from the legend of the dragons: where the mother dragon came down is Hạ Long, and where her children attended upon her is Bái Tử Long. The Bái Tử Long National Park, set up in 2001 on the former Ba Mùn Nature Reserve and an ASEAN Heritage Park since 2016, protects about 40 islands and islets together with the sea around them, and part of it lies within the Ha Long Bay World Heritage Site. The bay is known for its long white beaches, and the people of islands such as Quan Lạn, Bản Sen and Ngọc Vừng live mainly from fishing and fish farming.
Background
Bai Tu Long Bay lies to the north-east of Hạ Long Bay in Vietnam, and the Bái Tử Long National Park is contained within it.
Source: Wikipedia, "Bai Tu Long Bay"
What you'll find
- Hundreds of islands - the limestone and schist islands of the Vân Hải chain.
- Bái Tử Long National Park - about 40 islands and islets in the Ba Mùn, Trà Ngọ and Sậu groups.
- Long white beaches - among the reasons the bay draws visitors.
- Lý dynasty temples - among the historical sites of the national park.
When to go
October to April; summers are hot and humid, winters dry and cold. Two days.
Practical notes
Bai Tu Long is part of the same larger area as Ha Long Bay, with similar geology and climate, and part of its national park lies within the Ha Long Bay World Heritage Site.
Nearby
Cô Tô lies to the east; Ha Long Bay is to the south-west.
Key facts
Source: Wikidata, item Q10742189, read on 18 October 2026.
What to pack for Bai Tu Long Bay
Chosen from what this place is for. Tap a kit for the full checklist.
- Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
- Travel rod + reel - A packable multi-piece rod fits in a case and covers most holiday fishing. Find on Amazon
- Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
- Strong insect repellent - DEET or picaridin; the jungle is where bites and disease risk are highest. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.



