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Vietnam's Beaches and Islands

Ha Long Bay's limestone karsts and Phu Quoc's beaches — two completely different sides of the coast.

Vietnam's two headline coastal trips couldn't be more different. Ha Long Bay (north) is a UNESCO-listed seascape of nearly 2,000 limestone karsts, seen from an overnight cruise boat, not a beach trip. Phu Quoc (far south, near Cambodia) is an actual tropical beach island with calm water, resorts, and a Michelin-starred-adjacent night market. Best months: Ha Long Bay October–April (cooler, calmer seas); Phu Quoc November–March (dry season).

Don't confuse these two — they get lumped together as "Vietnam's coast" in generic listicles, but Ha Long Bay is a scenery-and-cruise experience (there's barely a swimmable beach in sight) while Phu Quoc is a genuine lie-on-the-sand tropical island. Picking the wrong one for what you actually want to do is the easiest mistake to make. Here's what each one really delivers.

Ha Long Bay
Beaches & Islands

Ha Long Bay

An overnight cruise through nearly 2,000 limestone karsts — not a beach trip.

Phu Quoc
Beaches & Islands

Phu Quoc

Vietnam's tropical beach island, near Cambodia, with a special visa-free entry rule.

Questions people actually ask

Can you swim in Ha Long Bay?
Some cruise boats stop at small beaches or offer a swim break in a quiet cove, but it's not a beach destination — the real draw is kayaking between limestone karsts and sleeping on the water, not sunbathing.
Is Phu Quoc worth visiting?
Yes, especially if you want a genuine beach-resort stretch of the trip after busy cities — calmer and less developed than Thailand's islands, with a growing but still reasonable resort scene and a cable car to nearby An Thoi islands.
When is the best time for a Ha Long Bay cruise?
October–April is cooler and calmer, with the clearest visibility around October–November and March–April. Summer (June–August) is hot and humid with a real chance of tropical storms affecting sailings.