Important Reminder:The Foursquare City Guide app officially sunset on December 15, 2024, with the web version following in early 2025. However, your check-in journey doesn’t end here! Join us on Swarm, where new adventures await.
Welcome to NOAAs National Marine Sanctuaries on Foursquare! Follow us to discover these amazing underwater treasures teeming with extraordinary marine life, shipwrecks and more!
Protecting more than 150,000 square miles of ocean from the Hawaiian Islands to the Florida Keys, majestic whales feed and migrate, coral reefs flourish and shipwrecks reveal secrets of our history.