The park is really a landing locale for immigrants arriving from Cuba in homebuilt boats called "chugs". Acquiring and housing the migrants is a selected challenge for Dry Tortugas, which has constrained resources for these kinds of arrivals and which happens to be several hrs from the closest Coast Guard https://beauzwoew.total-blog.com/how-tortugas-can-save-you-time-stress-and-money-53238370