News Release
NPS Photo by Brandon Cintron Gerena
News Release Date: November 10, 2026
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Media contact:, 786-897-1053
Contact:
Park information:, 305-242-7700
HOMESTEAD, Fla. — The National Park Service has selected William “Shawn” Arnold as the new Chief of Park Operations at Dry Tortugas National Park. Arnold previously served as Chief of Cultural Resources for Everglades, Biscayne and Dry Tortugas national parks. Arnold begins his new role Nov. 15.
“Shawn is an outstanding leader who understands the unique challenges of Dry Tortugas National Park and truly cares about the people and resources he serves,” said Sabrina Diaz, deputy superintendent of Everglades and Dry Tortugas national parks. “We are fortunate to have his experience and leadership as he takes on this new role.”
Arnold brings more than 20 years of experience in maritime archaeology, cultural resource management and federal service. His career includes leading archaeological investigations across Oceania, Micronesia, Southeast Asia, Australia and the United States. He has extensive experience in cultural resource compliance, tribal consultation, interagency coordination and complex underwater operations.
During his two years as the chief of cultural resources, Arnold worked closely with park staff to successfully balance operational needs with resource protection. He has also provided regular onsite support at Dry Tortugas, assisting staff with projects and daily operations at the remote island park.
Arnold holds advanced degrees in maritime archaeology and maritime studies. A veteran of the United States Navy, he was recently selected to serve with the U.S. Army Reserve’s Monuments Men and Women Program, where he advises military leaders on cultural resource protection.
For more information on Dry Tortugas National Park, visit www.nps.gov/drto or on social media @drytortugasnps.
Last updated: November 10, 2026