National Marine Sanctuary
Papahānaumokuākea
About this sanctuary
On March 3, 2025, a final rule to designate Papahānaumokuākea National Marine Sanctuary was published. The area will become a national marine sanctuary pending a congressional and state review period.
Papahānaumokuākea is the largest marine protected area in the Northern Hemisphere. Papahānaumokuākea protects one of the last pristine ocean environments in the world, is a sacred place with deep biocultural significance to Native Hawaiians, and safeguards the remains of those lost during World War II’s Battle of Midway.
Travel guide coming soon
The Foundation is actively expanding sanctuary content. This page will grow as the Foundation publishes travel guide entries, related stories, and event calendars for Papahānaumokuākea.
In the meantime, you can support this sanctuary directly, sign up for our newsletter to be notified when new content is published, or take action on current advocacy campaigns.