Chaweng Beach

Chaweng Beach stretches along the east coast, making it Koh Samui's longest and most celebrated beach. The full coastline runs approximately 7 km from north to south, though the main beach strip — the busiest and most developed section — covers about 2–3 km through central Chaweng. The powdery white sand is excellent throughout most of the beach, with the best swimming along the central stretch where the sand is cleanest and the water clearest.

The northern end of the beach can have stones and algae in the water, making it less ideal for swimming. Chaweng's east-facing orientation makes it one of Koh Samui's best spots for sunrise.

This is the island's social hub, where the beach party atmosphere comes alive especially in the evenings. From jet skiing and parasailing to beach volleyball, every water sport imaginable is available here. The extensive development means you'll never be far from restaurants, bars, shops, and convenience stores.

Parking can be challenging, particularly along the central strip. Police actively enforce illegal parking — use designated parking areas or hotel/venue parking where available. Many visitors arrive by scooter or taxi.

During the monsoon season (October–November) and storm events, Chaweng can experience strong currents, rip currents, high waves, and undertows. Red flags are posted when swimming is dangerous — always observe warning flags and avoid the water when they are displayed. Several serious incidents have occurred during storm conditions.

While the vibrant energy is part of its charm, those seeking tranquility should look elsewhere. The beach is extremely busy during all seasons, though early mornings before 8 AM and late evenings after 6 PM offer quieter moments.