Northeast/Great Lakes & Southeast Regions
Paddle through mysterious mangroves, dive above coral reefs, and cast your fishing line in this popular destination
Mallow Bay-Potomac River
Paddle among the historic shipwrecks of the Ghost Fleet of Mallows Bay
Visit one of the world’s premiere whale watching destinations to see breaching humpback whales and more
Pacific Islands & West Coast Regions
Voyage to the Southern Hemisphere to learn about Fa‘a Samoa, the Samoan way, and to dive among incredible corals
Experience the "Galapagos of North America" in this biodiverse seascape off Southern California
Dive deep beneath the ocean surface and encounter a surprising technicolor reefscape
Witness thousands of seabirds, explore a tide pool, and get to know the famed white sharks of the California coast
Hawaiian Islands Humpback Whale
Hear the haunting songs of courting humpback whales and join a sea turtle for a day at the spa
Travel to the "Serengeti of the Sea" to see whales, seals, sharks, sea otters, and more
Immerse yourself in the ocean and your national marine sanctuaries without getting wet!
Our planet is an ocean planet: Earth Is Blue. The National Marine Sanctuary System protects some of the most iconic underwater places throughout the United States, but we can't do it without you. No matter where you are, the ocean and Great Lakes are in your hands. We hope these images inspire you to help care for our ocean and to spread the word that Earth isn't green – it's blue.
Join us on and submit your own photos.
Stories from the Blue
Stories from the Blue celebrate the people at the center of national marine sanctuaries and marine national monuments. What does the National Marine Sanctuary System mean to you?
Earth is Blue Magazine
Explore Sanctuaries Live
with real-time video and communication feeds