OLogy: Dive Into Worlds Within the Sea
OLogy (American Museum of Natural History)

Find out what lives in the deep sea, coral reef, and continental shelf?

Environmental Protection Agency: Estuaries and the National Estuary Program
Environmental Protection Agency

Estuaries are places where freshwater from rivers mix with saltwater from the sea.

Environmental Protection Agency: What You Can Do to Help Protect our Coastal Watersheds and Estua...
Environmental Protection Agency

Here’s what you can do to protect our coastal watersheds and estuaries, our priceless resources