Laem Tham Phang is on the western side of Ko Si Chang, and its feature is a natural rock arch eroded clean through, framing the sea beyond — the island's most photographed view.

Tham Phang beach

The same area holds Tham Phang beach, the island's main stretch of sand — a rare thing on Ko Si Chang, where most of the shore is rock. There are restaurants and deckchairs for hire on the beach.

Before you go

• The path down is steep — not for anyone unsteady on their feet
• Expect to queue for the arch at weekends; come early for a clear shot
• No toilets at the viewpoint itself
• Free entry
• Late afternoon gives the best light and the biggest crowd at the same time