Reef Rover is a practical, cost effective approach for a 1000m, work capable, classed submersible. The design is a proven, extremely stable, two person craft developed for deep water filming and exploration. Rugged in design with plenty of payload for broadcast quality cameras, manipulators and sampling equipment, the Reef Rover provides a full panoramic view for the pilot and observer including sea bed visibility. Reef Rover provides scientists with the gift of time. Unconstrained by decompression issues, work and observation times are extended for five to eight hours during a typical dive with seventy two hours of life support on board. Advances in technology over the past twenty years have allowed DOER to incorporate new battery technology and electronics to greatly enhance performance and control while retaining proven design elements.