Racha Yai Island, or "Koh Raya Yai" as it is locally known, is a gem in the Andaman Sea located approximately 15 kilometers south of Phuket. The island's geography is characterized by a horseshoe-shaped coastline, with much of the interior consisting of flat foothills covered in lush tropical forests. The primary geological allure that draws global travelers is "Patok Bay," a sheltered cove on the west side known for its calm, crystalline waters throughout most of the year. The sand here is exceptionally fine and bright white—a unique result of centuries of decomposed coral and seashells—creating a landscape that looks almost ethereal.

Ecologically, Racha Yai is a premier sanctuary for both scuba divers and snorkelers. The island is encased by healthy fringing reefs, particularly around Lha Bay and Siam Bay. These areas are rich in staghorn, brain, and plate corals, providing a habitat for a diverse array of marine life including pufferfish, moray eels, and occasionally manta rays. In recent years, significant coral restoration projects and the deployment of artificial reefs have been implemented around the island to bolster its underwater biodiversity, making it one of the most vital marine study sites in the Phuket province.

Beyond its aquatic splendor, the interior of Racha Yai Island reflects a blend of rustic charm and upscale tranquility. Scenic footpaths wind through coconut plantations and coastal forests, connecting the various bays across the island. The island hosts premium eco-friendly resorts and high-end restaurants designed to integrate seamlessly with the natural terrain. Strong emphasis is placed on sustainable tourism, with active initiatives for waste management and plastic reduction to preserve the island’s pristine condition. Racha Yai remains more than just a vacation spot; it is a testament to the enduring beauty of Thailand’s maritime heritage, maintained through conscious conservation.

• Visitors can take a speedboat from Chalong Pier or Rawai Pier. The journey takes approximately 30–45 minutes. Most tourists opt for a pre-booked One Day Trip package, which typically includes round-trip boat transfers, snorkeling gear, and lunch.

Admission Fees:

• Free admission (Small pier fees or cleaning fees of 20-50 THB may apply depending on the tour operator)

Opening Hours:

• Open 24 hours (However, speedboat transfers usually operate between 08:00 AM and 04:00 PM)