Big Blue Unlimited, in co-operation with O2 Technical Diving, helps provide tech-diving training and certifications that allow divers to advance beyond the limits or recreational diving and explore the wonders of the underwater walls of Turks and Caicos. Contact Big Blue Unlimited before your next trip to Turks and Caicos to learn more about these exciting endeavors in education... Experience RebreatherImagine diving the underwater world as it should be… Silent, bubble-free and swimming so close to the fish that you have to push them out of the way! Big Blue Unlimited's one-day course can turn that into reality. Come and try our wide range of Rebreathers and dive into the future! Diver Propulsion Vehicle SpecialtyThis one-day certification course introduces you to the ultimate in underwater exhilaration. You'll be cruising the walls in style using the latest in DPV technology, exploring more dive sites than you ever thought possible! DPV rentals and DPV Safari's are also available upon request. NitroxPlanning multiple dives this vacation? Then welcome to the world of Nitrox! This one-day certification course offers you a safer breathing medium for enjoying all of your recreational dives. Increase your safety. Increase your bottom times. Shorten your surface intervals. Experience less post-dive fatigue. Nitrox is now the gas of choice for all discerning divers. Tech ExperienceDive the walls using full Technical Diving equipment. This one day course introduces you to double cylinder configurations, redundant regulators, dual wing-style BC's and other specialized hardware developed for the Technical Diver. This is an equipment intensive course designed to encourage the principles of diver self-reliance and equipment redundancy. Semi Closed Circuit RebreatherThe Drager Ray has arrived! The ''Ray'' is a lightweight, compact, easy to use and inexpensive unit that is revolutionizing the Rebreather industry. Training upon the Drager Dolphin Rebreather is also available. Check out our Rebreather Special, which combines the Nitrox and Rebreather courses at a discount rate! Fully Closed Circuit Electronic RebreathersThis is the ultimate diving experience. Imagine a machine that can take you to the edge of the underwater wall at 60fsw (18msw) for nearly three hours with zero bubbles and no decompression obligation! The Buddy Inspiration Closed Circuit Electronic Rebreather is the first Rebreather of its kind that can offer the above to the recreational diver at an affordable price. Training takes 5 to 6 days and the course includes all manuals equipment rental and certification. The future has arrived! Deep DiverMaybe you have already been deep diving? Maybe you are curious about trying it? Either way this is the course for you. This program is the first sanctioned International course to provide proper training in safe deep diving skills and performance. The diver will be using double cylinder kit configuration and stage tanks throughout the course. The course takes 5 days and includes four open water boat dives, confined pool sessions, manuals and certification fees. Advanced NitroxThis program is designed to extend the divers knowledge in the use of Nitrox 22% to 100% for recreational diving. Full technical diving equipment is used throughout the course. The course takes 5 days and includes four open water dives, confined pool sessions, manuals and certification fees. Tech SpecialThe first step towards your Technical Future! This five-day course is aimed at the dedicated recreational diver who wishes to combine both Nitrox and Advanced Nitrox courses (or Nitrox and Deep Diver courses) at a discounted rate. The course includes both course manuals, both certification fees, technical equipment rental, all Nitrox fills, confined water pool sessions and 4 boat dives. Technical Diver/ Extended Range DiverThis program provides training for divers to carry out dives to 170 fsw (51 msw) using custom blend mixes and is a prerequisite for the Trimix Diver program. The course takes 5 days and includes manuals, certification fees, confined pool sessions and four open water boat dives. Normoxic Trimix course also available. Trimix DiverThe Helium within Trimix affords a safer means for deep-water exploration for divers who must dive deep and perform with a clear head in depths up to 300 fsw (90 msw). The course takes 5 days and includes manuals, certification fees, all equipment and four open water boat dives. Nitrox BlenderThis program is intended to teach detailed technical information to mixing and blending technicians. Trimix blender certification also available. Quality Nitrox and Trimix FillsBig Blue Unlimited imports Ultra High Purity Oxygen and Helium for all blending purposes. This ensures you are breathing the finest quality mix at all depths. Insist on the best! Guided DivesBig Blue Unlimited provide small group diving to the most popular dive sites for Recreational and Technical Divers alike. Want to explore a completely new site?…Big Blue Unlimited can take you there! Surface and Safety diver support is also available upon request. For more information about Big Blue Unlimited, click on the home page below. For general information about the Turks & Caicos, click here: