Sai Kaew Beach

Sai Kaew Beach, often written Hat Sai Kaew or Saikaew, is the longest and most developed beach on Ko Samet, an island off the east coast of Thailand. It forms part of Khao Laem Ya, Mu Ko Samet National Park, which helps protect the island’s shoreline and marine environment.

The beach is characterised by soft white sand, shallow clear water and a continuous line of eateries, beach bars and small resorts. It attracts a mix of day-trippers from the mainland and overnight visitors, giving it a lively, social character rather than a remote or rugged feel.

Facilities are concentrated along the beachfront: sunbed and umbrella rentals, seafood restaurants, convenience stalls and a handful of water-sports operators. The atmosphere shifts from relaxed daytime swimming to lively music and dining after sunset.

• Long sweep of white sand and shallow swimming area ideal for families
• Coral outcrops and snorkelling spots near the edges at low tide
• Line of beachfront bars and restaurants offering seafood and Thai dishes
• Sunset views along the western end of the bay
• Nearby smaller bays and rocky points within easy walk or short taxi-boat ride

The best time to visit is in the dry season, roughly November to February, when the weather is cooler and seas are calmer; mornings and late afternoons are typically quieter and most pleasant for swimming or walking the beach.

Ko Samet is reached by ferry or speedboat from Ban Phe on the mainland; Ban Phe is about a 2.5 to 3 hour drive from Bangkok or a shorter regional bus or van trip. Boats land at several piers on Ko Samet and local songthaew taxis, short walks or motorbike taxis connect to Sai Kaew Beach depending on which pier you arrive at.

If arriving as a day-trip, expect organised transfers from Ban Phe piers to the main beach; if staying overnight, most guesthouses and hotels can arrange transfers or give clear directions from the island piers. Note that the island is part of a national park and there may be an entrance fee collected at the pier or main beach area.

• Carry cash for small purchases, sunbeds and local stalls, as some places may not accept cards
• Bring sun protection and reef-safe sunscreen for snorkelling, and water shoes for rocky spots
• If you want quieter conditions, visit early morning or late afternoon and avoid peak holiday weekends when day-trippers increase crowds
• Be aware of national park rules and any entrance or conservation fees, and take rubbish with you or use bin facilities
• If you plan to stay out late, check transport arrangements back to your accommodation or the pier as boat schedules can change seasonally