Koh Sak

Koh Sak is the closest island to Pattaya and one of the most convenient yet rewarding destinations for a relaxed island escape. Despite its proximity to the mainland, Koh Sak offers beautiful natural scenery, calm protected waters, and excellent snorkeling and diving — making it a favorite stop on short luxury yacht cruises.

Situated approximately 10 nautical miles from Ocean Marina, Koh Sak are among the most popular destinations. The cruising time is about 1 hour each way (2 hours return), making them ideal for 6 to 8-hour charters with plenty of time for beach activities, swimming, and relaxation.

The island is surrounded by coral reefs and sits within a bay that is naturally sheltered from the prevailing winds. This creates consistently calm conditions, ideal for swimming, snorkeling, and leisurely water activities. Koh Sak’s largest beach stretches in a graceful half-moon shape across the northern tip of the island, forming a tranquil inlet of shallow, warm water where guests can comfortably swim and relax. Lined with soft, swaying palm trees, the beach provides the perfect setting to unwind, enjoy the sunshine, and take in the tropical surroundings.

Beneath the surface, Koh Sak reveals a surprisingly rich marine environment. Numerous dive sites encircle the island, featuring gentle sloping seabeds that descend from shallow waters into colorful coral gardens. These sites are home to a wide variety of marine life, including sea horses, pipefish, dragon fish, and many species of reef fish. The reefs are composed of both hard and soft corals, with striking tiered staghorn formations, boulder bommies, whip corals, sea fans, barrel sponges, and mushroom corals creating an impressive underwater landscape.

Snorkelers can easily explore the shallower reef formations near shore, where visibility is often excellent and marine life is abundant. The calm conditions and gradual depth changes make Koh Sak particularly suitable for both beginners and experienced swimmers alike.

Due to its close distance from Pattaya, Koh Sak can become busy during peak tourist seasons, similar to nearby Koh Larn. However, arriving by private yacht allows you to enjoy the island in comfort, access quieter areas of the coastline, and experience its natural beauty from a more exclusive perspective.

With its protected bay, vibrant coral reefs, gentle swimming conditions, and inviting beaches, Koh Sak offers a perfect blend of relaxation and marine adventure — an ideal stop on any Pattaya yacht charter itinerary.