Chumphon Pinnacle

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Marine life at Chumphon Pinnacle...

Frequently ranked among the best dive sites in the Gulf, Chumphon Pinnacle is a fully submerged granite pinnacle that rises from depths of around 35 meters to just 14 meters below the surface. With no part of the rock breaking the waterline, everything here happens beneath the surface — creating the feeling of discovering a hidden underwater mountain. The upper sections are perfect for intermediate divers, while the deeper slopes reward experienced divers with bigger fish action.

Currents & Conditions

Chumphon Pinnacle is known for its nutrient-rich waters, which attract large pelagic life and fuel the site’s incredible biodiversity. Visibility typically ranges between 15–30 meters, and while currents are usually manageable, they can pick up — often bringing the very marine life divers come here to see. Water temperatures sit comfortably between 27–30°C for most of the year.

Underwater Landscape & Marine Life

If Sail Rock is famous for whale sharks, Chumphon Pinnacle is legendary for fish density. The pinnacle is surrounded by enormous schools of batfish jacks, baracuda, snapper & groupers that shimmer in the blue, constantly shifting as giant trevally and queenfish patrol the edges. Massive barracuda are frequently spotted cruising past, while batfish gather confidently around divers. Look closer along the reef and you’ll find sprawling sea anemones sheltering pink anemonefish, clusters of giant groupers resting near the granite, and moray eels tucked into crevices. The structure itself is dotted with smaller satellite pinnacles, creating a layered dive with something new appearing in every direction. And yes — whale sharks do visit. When conditions align, encounters here can be every bit as spectacular. In short, when the fish are schooling (which is often), Chumphon doesn’t just impress — it overwhelms.

Skill Level & Certification

Open Water divers can comfortably explore the top of the pinnacle, but Advanced Open Water certification or higher is recommended to fully appreciate the site and adapt to changing conditions. This is classic blue-water diving with the potential for big marine life — and it’s best enjoyed with a little experience.

Access & Logistics

Located northwest of Koh Tao, Chumphon Pinnacle is a 45 minute boat ride away and delivers big-site energy without the long journey. We meet at 7:20am and typically return by 12:30pm, making it the perfect half-day adventure. The trip includes one dive at Chumphon Pinnacle followed by a second dive at another local site, selected based on the day’s conditions to ensure the best possible experience.

When We Dive Chumphon Pinnacle

Our Chumphon trips run one day after each Sail Rock departure, and the day before we dive Southwest Pinnacle giving you the chance to experience all three of the Gulf’s most iconic dive sites back-to-back-to-back. Weather is generally favorable for most of the year, though conditions can occasionally shift during monsoon periods notably June to September & November & December.

2026 Chumphon Pinnacle Dates

March: 4, 7, 10, 13, 16, 19, 22, 25, 28, 31
April: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
May: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
June: 2, 5, 8, 11, 14, 17, 20, 23, 26, 29
July: 2, 5, 8, 11, 14, 17, 20, 23, 26, 29
August: 4, 7, 10, 13, 16, 19, 22, 25, 28, 31
September: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
October: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
November: 2, 5, 8, 11, 14, 17, 20, 23, 26, 29
December: 2, 5, 8, 11, 14, 17, 20, 23, 26, 29