Ocean Zone Divers is a technical dive center based in Chalong, Phuket, close to the main dive boat pier, specializing in technical, overhead-environment and rebreather diving alongside the full range of recreational courses. The center teaches through multiple agencies including TDI, SDI, PADI/DSAT and CMAS, run by senior technical instructor trainers with decades of experience in cave, wreck and trimix diving in Thailand. Courses range from PADI Open Water and Advanced Open Water through Nitrox and Advanced Nitrox, Cavern and Intro to Cave, and Wreck and Advanced Wreck diver programs, plus instructor-level training. Ocean Zone Divers also organizes day trips, liveaboard trips and diving expeditions, and sells and services equipment from Aqualung, Scubapro, Suunto and Uwatec. Group course prices shown are the center's published minimum-group (4 participants) special rates, with further early-bird and multi-booking discounts available.