Diving in Koh Phangan means one thing above all: Sail Rock — the best dive site in the Gulf of Thailand, just 1h15 by boat from Chaloklum. The Divers Boat runs daily departures at 10:00am, compatible with the Lomprayah ferry from Koh Samui. Whether you’re based on the island, passing through, or coming from Koh Samui, we have a departure for you every single day.

1h15
To Sail Rock
10:00
Daily departure
16:00
Back at pier
7/7
Year-round

Diving Koh Phangan: Sail Rock 1h15 away

Sail Rock — known locally as Hin Bai — is the most celebrated dive site in the Gulf of Thailand. This isolated granite pinnacle rises from 42 metres to just below the surface, with its famous natural chimney, dense barracuda tornadoes, giant groupers and regular whale shark sightings.

From Koh Phangan, Sail Rock is just 1h15 by boat — compared to 2 hours from Koh Tao. It’s the closest departure point in the Gulf for this site, and it’s from Chaloklum that we leave every morning.

Your diving day in Koh Phangan — what to expect

10:00
Departure from Chaloklum, Koh Phangan
Briefing on board, snacks, tea and coffee. Equipment is already on the boat — nothing to carry.
11:15
First dive at Sail Rock
The chimney, the barracudas, the groupers — and possibly a whale shark. Maximum 4 divers per guide.
12:30
Surface interval — hot lunch on board
Hot chicken and rice, fresh fruit, snacks and drinks. Debrief of the first dive.
13:30
Second dive at Sail Rock
Often the best one — you know the site, you know where to look, and you’re comfortable in the water.
16:00
Back at Chaloklum pier, Koh Phangan
Two Sail Rock dives done. If you’re coming from Koh Samui, the last evening ferry is waiting.

Staying in Koh Samui? You can dive Sail Rock today

Our 10:00am departure from Koh Phangan is the only one in the Gulf of Thailand compatible with the Lomprayah ferry from Koh Samui. Every other operator departs at 8:00am — too early to catch the first ferry. At The Divers Boat, you take the first Lomprayah from Koh Samui, arrive in Koh Phangan in time, dive twice at Sail Rock and return to Koh Samui the same evening.

💡 Koh Samui → Sail Rock day trip — how it works
First Lomprayah from Koh Samui (~7:30am) → arrive Koh Phangan (~8:30am) → boat departs 10:00am → two dives at Sail Rock → back in Koh Phangan 4:00pm → last Lomprayah to Koh Samui (~5:00pm). See the complete Koh Samui day trip guide →

SSI dive courses in Koh Phangan — Try Scuba to Divemaster

Our Koh Phangan centre offers the full range of SSI courses — not just fun dives. If you’re spending a few days on the island and want to make the most of it with a certification, our multilingual instructors are ready.

🤿 Try Scuba
First dive experience. No prerequisites.
🎓 Open Water SSI
First certification. Valid for life worldwide.
🚀 Advanced Open Water
Down to 30 metres. Better technique.
⭐ Specialties & Divemaster
Nitrox, deep, night, professional level.
💡 Multilingual instructors in Koh Phangan
Our Koh Phangan team teaches in English, French, Spanish, Dutch and Russian. Nitrox available. Full equipment stored on board — nothing to carry.

Practical information — diving Koh Phangan with The Divers Boat

✅ What’s included
2 dives at Sail Rock
Dedicated guide (max 4 divers)
Full equipment on board
Hot meal, snacks, drinks
Briefing and debriefing
📋 Requirements
Open Water certification (SSI, PADI or equivalent)
Valid medical fitness
Booking recommended the day before

🗓️ Departure schedule from Koh Phangan
🟢 Double Sail Rock — every day
Depart 10:00am → Back 4:00pm · 2,900 THB all inclusive
🎓 SSI courses — on request
Try Scuba, Open Water, Advanced, Specialties, Divemaster

Ready to dive Koh Phangan?

Tell us your dates and level — we’ll confirm your spot on the next departure. WhatsApp: +66 828 149 282

The Divers Boat Koh PhanganSSI Dive Centre · Chaloklum, Koh Phangan, Thailand
📞 +66 828 149 282  ·  🌐 thediversboat.com