Co To Island
An island near the Chinese maritime border with clear water and beaches, two hours out from the mainland.
Updated 21 October 2026
Co To lies well out from the Quang Ninh coast towards the maritime boundary with China, and being that far from the river mouths its water is clear in a way that the water around Ha Long is not - which is the main reason people make the crossing. There are beaches at Hong Van and Van Chay, a lighthouse on the high ground, and a smaller island, Co To Con, reached by local boat. It is a domestic destination almost entirely, busy in the Vietnamese summer holiday weeks and quiet otherwise, with the season effectively closed by the winter monsoon.
What you'll find
- Clear water - far enough out from the river mouths.
- Beaches at Hong Van and Van Chay - the main stretches.
- A lighthouse on the high ground - with a view over the island.
- Co To Con - the smaller island, reached by local boat.
When to go
April to September; boats stop in the winter monsoon. Two to three days.
Good to know
Sailings are cancelled by weather and getting stuck is possible. It is packed in the domestic summer weeks and shut outside them. Accommodation is guesthouses.
Nearby
Quan Lan is south-west; Van Don and the mainland are beyond it.
Key facts
Source: Wikidata, item Q86753544, read on 18 October 2026.
What to pack for Co To Island
Chosen from what this place is for. Tap a kit for the full checklist.
- 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
- Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
- Long, light, quick-dry clothing - Covers skin from insects and sun without cooking you in the humidity. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.



