California: Los Angeles and San Diego

A diver just off the coast of Santa Catalina Island at Avalon Underwater Dive Park

Hawaii: Maui and Oahu

Clear blue waters and eons of volcanic activity make Hawaii scuba diving one-of-a-kind

Florida: Key Largo and Deerfield Beach

A sea turtle on the Coast Guard Cutter Duane, a dive site off John Pennekamp Coral Reef State Park in Key Largo

Alaska: Anchorage and Seward

Spire Cove in Kenai Fjords National Park near Resurrection Bay

U.S. Virgin Islands: Coki Beach

Getting ready to explore the reefs off Coki Beach

Guam: Piti

In the West Pacific, Guam boasts pristine beaches and uncrowded scuba dive sites. A great beginner wreck dive site

Key Largo: Florida

John Pennekamp Coral Reef State Park. Considered the country’s first undersea park

Catalina Island: California

Casino Point Divers love exploring the kelp forest, which is rich with marine life, Valette-Wirth says

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