Diver propulsion vehicles (DPV) are underwater transportation systems for recreational and technical divers. DPVs have emerged from mostly military and commercial use to use in recreational environments for fun, for exploration to previously unexplored areas, and for scientific purposes. Over the past 15 years, DPVs have increased dramatically within the recreational and technical diving communities. [...]
Primary or exploration line reel Primary reels typically have up to 400 feet of line and are used for bridging the gap between open water and the main line in a cave. Primary reels can also be used to explore the interior of a wreck. Because wreck divers typically use #36 or #42 line, a [...]
A primary light is one of the most important pieces of equipment when penetrating wrecks. A primary light is just that, the main light you’ll be using throughout the dive that will provide the light for you to see where you’re going. For this reason, you should purchase the best possible light you can afford. [...]
Line arrows are triangular, plastic devices that are used to indicate the direction of the exit. They attach to the guideline and point to the exit. Typically, it is recommended that you carry at least three line arrows on every overhead environment dive. When cave diving, many of the caves have permanent lines and already [...]
Exposure Suits Exposure suits are designed to keep you warm underwater or protect you from getting stung or scraped or both. There are a variety of exposure suits on the market, such as dive skins, wet suits, and dry suits. Dive skins are usually made of Lycra and are designed to protect you from scrapes, [...]