Beacon Bay dive site at the Similan islands

Beacon reef dive site

Beacon Reef, also affectionately known as Beacon Beach, stretches along the entire eastern side of Island 8 (Koh Similan), standing as the largest and highest island within The Similan Islands archipelago. The national marine park office graces the northern tip of the island, serving as a gateway to the underwater wonders that lie beneath the surface. Often referred to as Atlantis Wreck, this fringing coral reef encompasses an intriguing piece of maritime history.

The Enigmatic Atlantis Wreck at Beacon Reef

Situated in the heart of Beacon Reef, the Atlantis X (Rareung-Chon), a wooden liveaboard, met an untimely fate in 2002. A malfunction of the bilge pump led to its sinking, and it now rests on the reef slope. Remarkably, there were no casualties among the crew and divers. The wreck, with its bow at 15 meters and stern at 30 meters, has transformed into an artificial reef, attracting a plethora of marine life. The Atlantis X adds a unique dimension to Beacon Reef, becoming a focal point for divers seeking both adventure and a glimpse into the ocean’s resilience.

Night Dives and Coral Plateaus

Closer to the beach, a coral plateau gently slopes from 5 to 12 meters, providing an ideal setting for easy-going dives and captivating night dives. The reef then gives way to a steep drop-off, ranging from approximately 5 meters to a depth of 40 meters. This topography offers ample space for diver training, fish spotting, and an overall immersive liveaboard experience.

Read more

Dive map of Beacon Bay at the Similan islands

Visit Beacon bay on one of these dive trips

 Manta Queen 7 at Similan Islands

Manta Queen 7
4 Days Liveaboard Trip

MV Lapat liveaboard at Beacon Reef

MV Lapat
2 Days  Liveaboard Trip

MV Dolphin Queen liveaboard

MV Dolphin Queen
3 or 5 Days Liveaboard Trips