Lake Havasu

Diving here is run from Lake Havasu City, where Scuba Training and Technology and Lake Havasu Scuba are both based and the Lake Havasu Divers Association promotes safe diving on the lake. Many sites can be reached from a private boat or straight off the beach, and the dive centre also runs its own boat to the rest; Victoria Cliffs and Copper Canyon are boat-only. Site 5 is the busiest training site, and it hosts the New Year's Day Frozen Fin Dive each January 1st.

Underwater the lake is rock and silt rather than reef. Victoria Cliffs runs about half a mile of sheer walls from 3 to 12 m (10–40 ft), broken by ledges, boulders, a few swim-throughs and some small sunken boats. Copper Canyon is a cove whose canyon walls drop to a flat floor averaging 9 m (30 ft), a floor littered with objects lost from the boats above. Site 5 is laid out for training, with navigation lines leading to two sailboats, a small tri-hull, a submarine and a truck.

The lake suits new divers, students finishing a course and anyone who likes a shallow, sheltered freshwater dive. It offers no reef and no deep water, and the Bridgewater Channel under the London Bridge is closed to divers all year apart from a permitted clean-up. The northern end of the lake lies inside the Havasu National Wildlife Refuge.