Wreck diving can be one of the most exciting aspects of sport diving, however every effort must be made to maximize safe diving techniques. The SDI Wreck Diver Course will discuss the equipment and techniques commonly employed while wreck diving. This course may be taught as a non-penetration, 2 dives required, or as a limited-penetration course, requiring 3 dives. Limited-penetration is defined as a swim through or within the ambient light of entry point.