Marianas Trench Marine National Monument

Located in the Northen Mariana Islands, Guam

Covering over 95,000 square miles (250,000 km2), this marine monument includes the waters and submerged lands of the three northernmost islands of the Mariana Archipelago, the submerged lands of 22 designated volcanic sites, and the Mariana Trench.

*Please see more details for leash info

*Please see more details for leash info

Leash Laws: Most parks require dogs to be on a leash in some or all areas, however, some parks allow dogs off leash in certain locations, please consult the parks website before going off leash, Thank you!

  • Consult the park website before traveling all information is to be used as a guide.
  • Respect local wildlife.
  • Leave no trace – What you bring in, you bring out.
  • If you are visiting during the hottest months of the year, a “palm test” is recommended before walking your dog – place your hand on the pavement for a minute and see if it is comfortable there. If the pavement feels hot to your palm, it will be hot to your dog’s paws.

Marianas Trench Marine National Monument Website

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We do our best to keep all information current and accurate - If you see an error or think we have missed something please contact us directly.

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