Hidden Depths Diving
Koh Lanta · Andaman Sea · Thailand
Dive Shop
2006
Nitrox
Boat
Full
3,500 THB
Highlights
- Fastest dive boat on Koh Lanta for first-to-site arrivals
- Strict 12-diver daily limit for uncrowded diving
- PADI Green Star recognition for environmental responsibility
Services & capabilities
Courses & Training
Specialty courses
About this center
PADI 5-Star IDC + Green Star center in Saladan, Koh Lanta. Fastest boat on the island, max 12 divers per trip, eco-focused diving.
Hidden Depths Diving is a PADI 5-Star IDC Center in Saladan that has earned PADI Green Star recognition for its commitment to environmentally responsible diving practices. The center operates what is widely considered the fastest dive boat on Koh Lanta, dramatically reducing transit times to distant sites and strictly limits daily capacity to a maximum of twelve divers per trip.
The speed advantage is most apparent on trips to Hin Daeng and Hin Muang, where the fast boat arrives well ahead of slower vessels from other operators. This means Hidden Depths divers are often the first in the water at dawn, encountering manta rays and reef sharks before the sites become busier later in the morning. The same advantage applies at Koh Haa, where early arrival means fresher conditions and undisturbed cavern dives at Cathedral and the Chimney.
As a PADI 5-Star IDC Center, Hidden Depths offers the full training pathway including Instructor Development Courses. The Green Star rating reflects verified environmental practices including participation in Project AWARE, reef monitoring surveys, and plastic reduction measures. Staff actively engage guests in conservation awareness, and the center coordinates regular underwater cleanup events.
The twelve-diver limit ensures spacious conditions on the boat and uncrowded dive sites, distinguishing Hidden Depths from operators that pack thirty or more guests onto larger vessels. This capacity control means advance booking is essential during peak season months of December through March.
Courses span the PADI range from Discover Scuba through Divemaster and instructor levels. Popular specialty courses include Underwater Photography, taught with access to the center's camera rinse facilities and image review sessions, and the PADI Coral Reef Conservation specialty that complements the center's environmental mission. Nitrox is available on all trips.
Opening Hours & Season
Open year-round
Opening hours
- Monday: 10:00 AM – 6:00 PM
- Tuesday: 10:00 AM – 6:00 PM
- Wednesday: 10:00 AM – 6:00 PM
- Thursday: 10:00 AM – 6:00 PM
- Friday: 10:00 AM – 6:00 PM
- Saturday: 10:00 AM – 6:00 PM
- Sunday: 10:00 AM – 6:00 PM
Accommodation & Logistics
Accommodation
Partner property
Frequently Asked Questions
Why does Hidden Depths limit trips to 12 divers?+
The twelve-diver maximum ensures spacious conditions on the boat, uncrowded dive sites, and more personalized attention from guides. It also reduces environmental impact on sensitive reef areas.
How fast is the dive boat?+
Hidden Depths operates what is considered the fastest dive boat on Koh Lanta, reaching Koh Haa in approximately 40 minutes and Hin Daeng in about 80 minutes, arriving well before slower competitors.
What does PADI Green Star mean?+
PADI Green Star recognizes dive centers that demonstrate commitment to environmental conservation through verified practices including reef monitoring, cleanup events, and sustainable business operations.
Videos
Scuba Diving at Hin Daeng with Hidden Depths Diving
Claim your dive center’s profile
The claim flow opens with the 2026 launch. Leave a work email and we’ll write to you when claiming opens for your listing — nothing else, no marketing.
Requesting early doesn’t change how your listing appears — it just gets your details ready sooner.