Southwest Pinnacle Dive Site
offshore granite pinnacles, schooling fish, deeper profiles and whale shark chances
Overview
- Best for: Advanced divers, confident OW, fun divers, deep students and photographers
- Not ideal for: nervous beginners, DSD, seasick-prone visitors or shallow training
- Vibe: deeper, bigger, fishier and offshore
- Must-do or easy local site: must-do for certified fun divers when conditions are good
Depth and Certification Level
- Depth: about 5-30 m, common dives 16-25 m
- Beginners: not for brand-new beginners
- Open Water: usually no
- Advanced Open Water: yes, excellent
- Recommended certification: Advanced recommended
- Guide recommended: yes
Marine Life and Underwater Scenery
- Landscape: large granite pinnacles, boulder ridges, anemones, soft coral, ledges and sand
- Common marine life: fusiliers, barracuda, trevally, queenfish, batfish, groupers, snappers and morays
- Special sightings: whale sharks, cobia, Jenkins rays, great barracuda and sea snakes
- Macro life: yes but not main focus
- Bigger fish: yes
- Coral and reef scenery: yes, offshore pinnacle scenery
- Photography: yes, wide angle and schooling fish
Conditions and Hazards
- Visibility: variable, good days 15-30 m+
- Current: common
- Weather sensitivity: offshore/exposed and condition-dependent
- Shelter/exposure: exposed
- Wind and sea conditions: southwest/west/south swell and current
- Hazards: depth, current, boat traffic, separation, NDL and fishing line
- Swim-throughs/caves: small gullies/overhangs only
- Wreck penetration: No, unless this is a wreck-specific page. For HTMS Sattakut only, penetration requires proper wreck training, equipment and supervision.
Typical Dive Profile
descend line, deeper pinnacles first, work shallower over tops, safety stop line/SMB
- Morning/afternoon/full-day: morning/special trip
- Boat time: 40-60 minutes depending departure
- Night diving: not standard
- Dive schools: yes for AOW/fun dives
- Busy with boats: can be busy, less than local sites
Courses and Skills
- Try dives: no
- Refreshers: not first refresher
- Deep dives: yes
- Navigation: moderate
- Buoyancy: yes for experienced divers
- Specialties: deep, photo, fish ID, naturalist
Local Advice
Southwest Pinnacle is one of Koh Tao’s stronger offshore sites for deeper profiles, schools of fish and occasional whale shark chances.
Nearby Paired Sites
Shark Island, Hin Ngam, Ao Leuk, Sai Daeng
Chumphon Pinnacle | Sail Rock | Diving in Koh Tao
Local Tips
- What makes it different: big offshore feeling without going to Sail Rock
- Manage expectations: whale sharks possible not guaranteed
- Best thing: big-site fishy feeling
- Main downside: distance and conditions
- Tip: watch depth/NDL and don't chase big animals