Known as the nature island, Dominica is a land of rugged beauty. Ditto for what lies below, where the island's soaring peaks and deep valleys are mirrored in dramatic drop offs, sheer walls and submarine canyons. Volcanic origins are evident in a seascape riddled with pinnacles, swim-throughs and bubbling fumaroles, while the nation's commitment to conservation is evident in the wealth of marine life and healthy hard and soft corals that thrive within a trio of marine reserves. Small treasures from seahorses and frogfish to a plethora of invertebrates await the keen-eyed diver and the avid macro photographer. Calm waters are inviting to all, but excitement is just offshore where the big animals swim.