Bamboo Bay
Koh Lanta, Krabi, Thailand
Bamboo Bay, also called Ao Mai Phai, is the last beach before Koh Lanta's national park boundary, a two kilometer curve of sand at the island's southern tip in Krabi province, Thailand. Big boulders break up the shoreline in places, the water stays clear enough to see your feet, and by evening the day trippers have mostly cleared out.
Genuinely quiet even by Lanta's standards, since it sits past where most tourists bother driving, but the rocky patches and remoteness are exactly why it stays overlooked.
Bring water shoes. The sand slopes gently and is lovely for wading, but the rocky patches at either end are easy to cut a foot on if you're not paying attention.
Getting here means renting a scooter or arranging a taxi from wherever you're staying on Lanta, since it's a good 40 minutes south of the main strip near Klong Dao. A couple of small resorts along the bay have parking for guests.
The road ends at a handful of bungalow resorts with sandy paths down to the water. There's no boardwalk or paved access, just a short walk over packed dirt and sand.
Dry season runs November through April, and that's also the best window for snorkeling here since the water clears along the bay's edges. May through October brings the southwest monsoon, with rougher water and more overcast days.
More Asia Pacific beaches

Sanom Beach
Koh Lipe, Satun, Thailand · Asia Pacific
Sanom Beach sits at the far southern end of Pattaya Beach on Koh Lipe, Thailand, reached by a wooden walkway over the rocks once the main beach runs out. The sand is quiet compared to Lipe's busier strips, backed by shade trees, and the resort here is run by local Urak Lawoi sea gypsies rather than an outside chain.

Sunset Beach
Koh Kradan, Trang, Thailand · Asia Pacific
Sunset Beach is the quieter western shore of Koh Kradan in Trang province, Thailand, a short walk across the island from the long main beach that gets most of the attention. There's less wave action here than on the east side, the swimming stays calmer, and as the name promises it's the spot locals and the handful of resort guests head to for the evening light.

Hua Laem Beach
Koh Wai, Trat, Thailand · Asia Pacific
Hua Laem Beach is one of a handful of small coves tucked along the north shore of Koh Wai, a tiny car-free island in Trat province, Thailand, inside Mu Ko Chang National Park. Shady trees crowd right up to the sand, the water is shallow and clear enough to snorkel straight off the beach, and a coral reef runs along much of this coastline about 40 meters out.
