Ao Dong Tan

Ao Dong Tan is a roughly 400-metre crescent beach inside the Royal Thai Navy’s Sattahip Fleet base, on the Gulf coast south of Pattaya. The name means “sugar palm grove,” a reference to the palmyra palms lining the shore, and the beach itself is calm, shallow, and free to enter. It’s open daily 08:30–16:30, the hours set by the naval base that surrounds it.

Because the beach sits inside an active military base, getting in means passing a checkpoint (bring ID) rather than just parking and walking onto sand. Once inside, the setup is straightforward: beach chairs and umbrellas for rent, inner tubes for kids, a handful of restaurants and shops serving the usual Thai beach menu — som tam, grilled seafood, fried rice — and clean restrooms. Swimming conditions are gentle thanks to the rocky headlands that close off the bay, which makes it workable for families with young children, though there isn’t coral or reef to snorkel — the appeal here is calm water and shade, not marine life. Kayaking and fishing are the other common activities, with locals casting lines from the rocks at either end of the bay.

On Friday, Saturday and Sunday evenings, a separate seaside market sets up along the shore road from 5pm, with food stalls selling grilled seafood and Thai street snacks running well after the beach itself closes for the day — worth timing a visit around if you want both the swim and the market.

Insider Tip: Weekday mornings before 10am are close to empty even in high season — this is a Thai-local beach rather than a farang draw, and weekday visitors often have long stretches of sand to themselves.

Watch out: Because the beach is on active naval land, expect occasional closures or restricted access around military exercises or events. There’s no public schedule for this, so it’s worth checking locally, or simply having a backup beach in mind, if you’re visiting on a specific date.

Getting there requires your own transport — a short drive from central Sattahip through the base’s access road. There’s no songthaew or public bus route directly to the beach gate.