Recreational scuba diving specialty courses

Deep

Unlock access to thrilling deep dive sites and master the skills needed to safely explore the ocean down to 40 meters.

1. Why Take This Speciality Course?

Take a fresh look at the mysterious depths of the ocean There is something undeniably exhilarating about exploring the deeper parts of the reef. Unique marine life, stunning topographies, and famous dive sites like Hin Daeng and Hin Muang await in deeper waters. The SSI Deep Diving specialty provides you with the knowledge, skills, and practical experience to plan and execute dives safely down to a maximum depth of 40 meters (130 feet). Learn to manage your gas supply, recognize narcosis, and dive with complete confidence.

Advanced Depth Limits: Expand your diving horizon safely from 18m up to a maximum limit of 40 meters.
Gas & Narcosis Management: Understand the physical effects of depth, nitrogen narcosis recognition, and gas consumption planning.
Specialized Deep Equipment: Learn to select and use specialized gear such as dive computers, drop tanks, and surface marker buoys (SMB).
Open to Certified Divers: Requires prior open water diving certification and includes dedicated ocean training dives.

2 .Course Curriculum (1 Day, 2 or 3 local dives)

The course combines interactive online learning on the MySSI app with pre-dive briefings and 3 dedicated open water deep dives at Koh Lanta’s premier deep sites.

🔹 Key Topics Covered:

Deep Dive Planning & Risk Management: Calculating surface intervals, gas consumption rates, and emergency procedures for deep profiles.
Deep Water Physiology: Recognizing and responding to nitrogen narcosis, decompression sickness risks, and buoyancy control under high pressure.
Navigation & Specialized Gear: Using SMBs, safety stops, specialized lighting, and computers for multi-level deep dive profiles.

3. Prerequisites

Prerequisites: Open Water Diver certification (SSI, PADI, or equivalent).
Minimum Age: 15 years old.

4. Your International Certification

At the end of the course, you will earn your SSI Deep Diving Specialty Certification.

Recognized worldwide.
Counts directly toward your Master Scuba Diver rating or Advanced Open Water / Specialty Diver levels SSI.

5. Frequently Asked Questions (FAQ)

What is the maximum depth I will reach during this course?

During the specialty training, you will safely build up your experience and maximum depth to 40 meters (130 feet), which is the absolute limit for recreational diving.

Can I combine the Deep Diving specialty with Enriched Air Nitrox?

Absolutely! Combining Nitrox with Deep Diving is ideal, as Nitrox provides significantly more allowable bottom time at deeper depths like 20m to 30m.