Chimon Island: Day use of Chimon Island is available only in the designated beach area. No overnight camping or use of the island's interior is allowed. Access to Chimon Island is restricted from April 1 to August 15 because of the bird nesting season.
Grassy Island / Shea (Ram) Island:
During the open season from May 1 through Columbus Day (October 12), Grassy Island and Shea (Ram) Island are open to the general public for daytime and overnight camping.