Information about diving courses. Articles about scuba and equipment.

DIR-Mexico is dedicated to quality cave diving instruction and guiding in Mexico's Yucatan Peninsula.

Providing recreational and technical dive courses, including cave, rebreather, deep dive, wreck hunting and expeditions, and dive products.

Information on trimix and other mixed gas diving.

Commercial diver training academy in Townsville, North Queensland, Australia, offering training leading to HSE and Norwegian Petroleum Directorate recognition, nitrox and technical diving, diver medical technician training, and recreational dive courses, from entry level to instructor.

Diving classes ranging from open water to nitrox and other technical courses. Austin, Texas.

Wreck and cave diving Italian web site. Merlo's well exploration web site.

Technical, nitrox, cave diving and other courses offered by this organization based in Lake City, Florida.

An online technical scuba diving equipment vendor focused on this type of gear and proponents of the Hogarthian configuration method.

UK based technical diving instruction and access to hard to find dive equipment. Online Equipment configuration details

Trimix diver's resource for training, instruction, dive sites, wreck diving, and equipment.

Digital instruments for technical diving, nitrox trimix diving and rebreather diving.

Photos and current information on the cave and cavern systems and the springs of Florida. Separate listings for caverns and caves.

A site dedicated to the advancement of technical divers.

Scuba courses and education from beginner to expert, cave diving gas mixing, liveaboard trips and certification

Technical diving adventures and training, in Hawaii. Courses include: Nitrox, Decompression and Extended Range Diving, Trimix, Rebreathers, DPV, Gas Blender, and Service Technician.

Training center for both recreational and technical diving. Sales and service of equipment as well as rebreathers.

OxyCheq sells oxygen sensors for all types of rebreathers and O2 analyzers. They also sell a oxygen analyzer kit for $100 and that includes the sensor.

Discussing technical dive training, instructor training, and professional development.

Cavern and cave diving in Tulum, Mexico.

Welcome to island-scuba.com We are your "buddy" in the dive business! Our 25 years of experience and expertise are now on-line.

Home of the VoodooGas Team.

SeaTech Technical Scuba Diving Expeditions carry out mixed gas dives around the UK.

Technical divers in the arctic region of Scandinavia.

Detailed narrative on all the best technical trimix SCUBA dive sites in Florida.

Scuba Diving and Technical Diving Courses. Gear Sales, Hire and Service. South East Queenslands Deep Wreck diving specialists. A full range of technical courses for three different certification agencies.

Information about the physics of technical diving, including the influences of inert gases on decompression and diver insulation. Decompression calculations using the Varying Permeability Model (VPM) bubble model.

Provides course descriptions, links and contacts. Located in Sury, UK.

Technical diving education, training and services.