Olympic Coast
National Marine Sanctuary

Olympic Coast National Marine Sanctuary is one of the nation's most treasured ocean areas, and home to a rich abundance of marine mammals, seabirds, fish, and thriving invertebrate communities. The sanctuary is also rich in cultural resources, with over 200 documented historical shipwrecks and the vibrant contemporary cultures of the Hoh Tribe, Makah Tribe, Quileute Tribe, and the Quinault Indian Nation.

report cover: a rocky coastline

Condition Report

A "condition report" provides a summary of resources in Olympic Coast National Marine Sanctuary, pressures on those resources, current conditions and trends, and management responses to the pressures that threaten the integrity of the marine environment.

a dungeness crab on the seafloor next to an eel

Stressed Out: Dungeness Crabs off the Pacific Northwest Coast

Dangerously low oxygen levels are killing Dungeness crabs off the Pacific Northwest Coast, and scientists are undertaking a collaborative project to understand the impacts and relationships of the multiple stressors involved in order to shape the future of ocean science and fisheries management in the region.

report cover: orca leaping out of the water

A Changing Ocean

Explore how Olympic Coast National Marine Sanctuary is being, affected by climate change now and into the future.

Go Coastal

Looking for adventures this summer? Check out the Pacific Northwest jewel that is Olympic Coast National Marine Sanctuary!


Immerse yourself in the ocean and your national marine sanctuaries without getting wet!

Dive Into Olympic Coast

National Marine Sanctuary System

national marine Sanctuary system map

The Office of National Marine Sanctuaries serves as the trustee for a network of underwater areas encompassing more than 620,000 square miles of marine and Great Lakes waters from Washington state to the Florida Keys, and from Lake Huron to American Samoa. The network includes a system of 15 national marine sanctuaries and Papahānaumokuākea and Rose Atoll marine national monuments.