Hat Thang Sai, Prachuap Khiri Khan

Powder-white sand stretches for kilometers along this pristine coastline in Bang Saphan, where crystal-clear waters meet one of Prachuap Khiri Khan’s most beautiful yet undiscovered beaches. Hat Thang Sai offers the quintessential tropical beach experience without the crowds that plague Thailand’s more famous destinations. The shallow, turquoise waters and gentle waves create perfect swimming conditions, while coconut palms provide natural shade along the entire shoreline.

Swimming here feels like floating in a giant natural pool, with visibility extending several meters underwater thanks to the exceptionally clear water. The fine sand remains cool underfoot even during midday, perfect for long beach walks or simply lounging. Fresh seafood restaurants line the beachfront, serving grilled fish, tom yum soup, and cold Thai beer just steps from the water. You’ll hear nothing but gentle waves lapping the shore and the rustle of palm fronds in the sea breeze, with the occasional longtail boat puttering by. The beach curves gracefully in both directions, creating secluded coves perfect for snorkeling around the rocky outcrops at either end.

Tranquility defines the Hat Thang Sai experience, where you might have entire sections of beach to yourself, especially on weekdays. Local fishing families still work from the northern end, adding an authentic slice of coastal Thai life to your beach day. Couples find romantic sunset spots along the quieter southern stretch, while families appreciate the safe swimming conditions and gentle slope into the water.

November through March offers the best weather with calm seas and minimal rainfall, though the beach remains swimmable year-round. The beach sits about 45 minutes south of Prachuap Khiri Khan town by motorbike or car – follow Highway 4 and turn west at the Bang Saphan signs. Bring reef-safe sunscreen and plenty of water, as the nearest convenience stores require a short drive inland. This slice of unspoiled coastline rewards the extra effort to reach it with some of Thailand’s finest beach conditions.