Deep Diver Specialty on Koh Lanta

Are you tempted to go a little bit deeper on your dives? Do you want to explore shipwrecks, walls and canyons that lie beyond the limits of your current dive certification?

Here are 7 reason why you should take the SSI Deep Diver Specialty course here on Koh Lanta and get certified to dive to 40 metres:

1. Explore Deeper Dive Sites

Many intriguing dive sites, such as wrecks, walls, drop-offs, deeper reefs, and unique marine life habitats, are found at greater depths. A deep diver course allows you to safely explore these sites up to 40 metres (130 feet).

2. Safety and Skill Development

Diving at deeper depths requires a different set of skills to manage increased risks, such as nitrogen narcosis, increased air consumption, and longer decompression times. The course teaches you to handle these challenges confidently.

You’ll also gain experience in dive planning, gas management, and using a dive computer for deeper dives.

3. Increase Confidence and Experience

As you learn how to handle the specific conditions of deep diving, such as colder water, lower visibility, and changes in buoyancy, you’ll become a more capable and confident diver.

The course helps you expand your comfort zone and equips you to handle more demanding dives safely.

5. More Dive Travel Destinations

Once you’re certified to dive deeper, a whole new world of dive destinations opens up. From the wrecks of Chuuk Lagoon in Micronesia, Barracuda Point at Sipadan in Malaysia, or the iconic Blue Hole in Belize, there’s an endless list of bucket-list-worthy sites waiting for those with a Deep Diving Specialty certification.

6. Dive into History

Imagine exploring a sunken World War II wreck, or swimming through the remains of a long lost pirate ship. Many wrecks lie in deep water, making them off-limits to Open Water Divers, unless they’re certified as a Deep Diver.

7. Extend Bottom Time Safely

The course teaches how to maximise bottom time while managing air consumption and decompression limits, allowing you to explore more thoroughly while staying within safe limits.

Deep Diver Course Content

Deep Diving on Koh Lanta

The SSI Deep Diver course content here on Koh Lanta consists of knowledge development, followed by 3 open water Deep Diver training dives.

Deep Diver: Knowledge Development

Firstly, you will need to register with SSI and affiliate to Dive & Relax.

Once your booking is confirmed, we can release the course materials, which means you can complete the course theory and quizzes on the SSI App before you arrive on Koh Lanta.

You'll learn all about:

• Scuba Equipment for Deep Dives
• Deep Diving Limits
• Deep Dive Planning
• Altitude and Diving
• Pre-entry Procedures
• Descent Procedures
• Deep Diving Procedures
• Ascent Procedures
• Potential Hazards
• Diving Maladies
• Incident Management
• Repetitive Deep Diving
• Decompression Diving

Deep Diver: Open Water Dives

The practical part of the SSI Deep Diver Specialty course consists of 3 deep dives to a maximum of 40 metres, however since we do 2 dives per day on our boat trips, you will actually have 4 dives over a 2 day period, with the last dive being a fun dive.

The Deep Diver Specialty course dive schedule is:

During the Deep Diver course on Koh Lanta, you'll cover:

• Dive Planning
• Pre-dive Check
• Buoyancy Check at the Surface in Deep Water
• Controlled Descent
• Equipment Adjustment
• Neutral Buoyancy (Hovering)
• Underwater DSMB Deployment
• Controlled Ascent
• Safety Stop
• Surface Air Consumption Rate Check

You should have dived recently in order to take part in this course. If you have not dived for a while then you should do at least 1 day of Fun Diving to properly prepare yourself for the first day of deeper diving.

Due to the depths required for Dive 3, the second day of the course should be at Koh Haa, where several areas easily allow 40 metres depth.

We prefer to teach SSI courses, what's the difference between SSI and PADI?

SSI Deep Diver Specialty Price

Deep Diving on Koh Lanta

The price for the SSI Deep Diver Specialty course on Koh Lanta is ฿9,360 when booked online in advance (2 days, 4 dives).

• Open to all certified divers (SSI, PADI, BSAC, CMAS, etc.) at least 15 years old.
• Includes lunch and soft drinks on the boat.
• You must have proof of recent diving, or do 1 day Fun Diving before starting Deep Diving.
• Does not include Marine Park Diving Fee: Thai ฿240, Foreigner ฿600, per day.

See a complete list of all our Koh Lanta Diving Prices.

Scuba Courses Available on Koh Lanta

Learn to Dive on Koh Lanta

We teach a full range of SSI recreational scuba diving courses here on Koh Lanta, from the entry level Open Water Diver course all the way up to Diver Stress & Rescue, together with numerous specialty courses.

• Discover Scuba Diving
• Open Water Course
• Scuba Skills Refresher
• Enriched Air Nitrox
• Deep Diver Specialty
• Perfect Buoyancy Specialty
• Navigation Specialty
• Advanced Adventurer
• React Right - First Aid & CPR
• Diver Stress & Rescue
• Diving with Kids

Are you Fit to Dive?

Dive trips & Scuba Courses on Koh Lanta

Whilst scuba diving is a very safe activity, it is important to know that you are fit to dive and that you do not have any fitness or medical conditions that could increase your risk of an accident underwater.

• Download and read the Diver Medical Questionnaire.

If you answer 'yes' to any of the medical questions, please print the entire form and take to your family doctor who will assess your fitness to dive. Your doctor will complete page 3, which we must see before you can start diving.

Find out more with the UK based Diving Diseases Research Centre.