Koh Rong · With kids

Four kilometres of flat, shallow sand with almost no development, fifteen minutes' walk from the quiet end of Koh Touch over a low headland. There are no shops on it, so carry water, shade and lunch.

Ninety-six rooms including two-bedroom family chalets on the long west-coast beach, with kayaking and horse riding on site and its own boat from Sihanoukville Port Gate 1, under an hour away. Its site also warns there are no ATMs anywhere on the island.

Villas along 550 metres of beach at Sok San village, with a pool, a kids' corner and kayaks, paddleboards and banana-boat rides. The expensive, low-friction option if you want one place to hold the whole week.

A small palm-backed bay with a single resort and rooms from around US$30, out near Song Saa. Speed Ferry stops three times a day, which makes it one of the few quiet beaches you can reach with children and luggage without chartering anything.

The few hundred metres of Koh Touch either side of the pier is the island's bar row and it runs late. Families do better ten minutes' walk along the sand, or over at Sok San, and get the same beach in daylight anyway.