Jaak (Chak) Bay

Best months: Jan–May

Protected Area

Muko Surin

Why dive here

With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Jaak (Chak) Bay offers some of Similan Islands's richest reef diving. Water ranges 29-31°C, warmest April, May, June.

Best timeJan–May

WetsuitA 3mm shorty or thin full wetsuit

Marine lifeBlacktip Reef Sharks, Eagle Rays, Giant Moray Eels, Whale Sharks and Clownfish · 173+ species recorded

Water29-31°C · warmest April, May, June

CharacterReef dive

StandoutExceptional marine biodiversity

Jaak Bay, nestled along the eastern side of Similan Island #8, is one of our favourite spots for a truly relaxed dive. It’s not the dramatic drop-off or current-swept pinnacle of some other Similan sites. Instead, imagine a gentle slope, mostly sand, giving way to a healthy, vibrant coral garden. We often find ourselves drifting along the edges of the staghorn coral patches, spotting Jansen's wrasse darting between the branches. Keep an eye out for the Andaman foxface grazing lazily, or a shy blue-spot blenny peeking from its hidey-hole. The beauty of Jaak Bay lies in its subtler details – the way the light filters through the water onto the sand, the quiet rustle of parrotfish munching on the reef. It’s a site that rewards a slow pace and an observant eye. We love it for its calm conditions, making it an ideal second dive of the day, or perfect for divers wanting to hone their buoyancy and photography skills without fighting a strong current.

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Reviews for Jaak (Chak) Bay

Conditions

Ocean conditions, forecast and tides for Jaak (Chak) Bay

Jaak (Chak) Bay Ocean Conditions

Monthly averages for Jaak (Chak) Bay, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.1, 98.3) (6km away)