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Looking for an out-of-the-ordinary shark dive? Here are five you probably haven't heard about but should — plus 15 favorites we just can't get enough of.

One of the oldest wrecks on the Shaab Abu Nuhas Reef, the wreck of the SS Carnatic is a beautiful dive site in the Red Sea.

Watch the excitement experienced by Stuart Cove's Dive of a Lifetime contest winner, Dallas Staheli, as he dives walls and brightly colored reefs.

Lake Garda is a holiday hotspot for sun-seeking tourists, who come to sample the delicious local cuisine, the fine wines and the stunning scenery — and diving.

Scotland's Scapa Flow boasts one of the highest concentrations of diveable World War I wrecks in the world.

Germany's Lake Constance is a prime dive site for everyone, from raw novices to seasoned technical divers.

While the Weissensee is popular with swimmers and fishermen, it is also a hotspot for divers. There are numerous shore and boat dives available that show off a variety of underwater spectacles from this high-altitude lake — including submerged trees and huge carp, perch and pike.

Malta is renowned for its wreck diving, a sublime blend of genuine shipwrecks from wartime action or maritime mishaps and artificial reefs.