Top Highlights for Riches Pinnacle Dive Sites in Similan Islands
Riches Pinnacle Dive Sites in Similan Islands
The Similan Islands excel for pinnacle dive sites through their granite seamounts that pierce nutrient-rich currents, drawing whale sharks, mantas, and pelagics to remote spots like Koh Bon and Koh Tachai pinnacles. These uninhabited islands, 60km off Thailand's Andaman coast, offer pristine boulders, swim-throughs, and coral gardens unmatched in Southeast Asia for dramatic topography. Liveaboards unlock this "riches" of big marine life, far from tourist crowds.
Top pursuits center on Koh Tachai Pinnacle's twin domes for manta cruises and trevally hunts, Koh Bon Pinnacle's slabby isolation for surprise encounters, and Richelieu Rock's pelagic frenzy. Divers navigate 12–40m depths via moorings, chasing leopard sharks, barracuda balls, and batfish amid hard corals and fans. Multi-day liveaboards string these sites with North Point and Christmas Point for varied boulder reefs.
Dive November–April for 20–30m visibility and minimal rain; expect moderate-to-strong currents requiring drift skills and advanced buoyancy. Prepare with 30%+ Nitrox fills, strong regulators, and current hooks; national park closes May–October. Liveaboard itineraries hit pinnacles on days 2–4, with 3–4 dives daily.
Local Thai dive crews from Khao Lak share insider knowledge of pinnacle hotspots, emphasizing conservation in this UNESCO-aspiring marine park. Communities stress no-touch policies to preserve corals and sharks, fostering authentic bonds with the sea's rhythms. Operators like those at Tab Lamu Pier blend Thai hospitality with global expertise.
Mastering Similan Pinnacle Dives
Book liveaboard trips 3–6 months ahead for November–April season when parks reopen and seas calm; prioritize operators with moorings at Koh Tachai and Koh Bon for current-prone sites. Advanced certification like Advanced Open Water or 50+ dives ensures safety at 20–40m depths. Check Mu Ko Similan National Park fees (THB 500–900/person) included in most packages.
Arrive in Khao Lak a day early to adjust to heat and confirm gear fits; pack motion sickness meds for boat rides and reef-safe sunscreen. Download dive site maps and marine life apps for spotting pinnacles underwater. Brief with divemasters on currents—hook in if strong.