If you carefully keep your bird records by state, be aware of the location of the state line and use the appropriate eBird hotspots when you submit checklists. 

Four Tree Island is part of Prescott Park and is accessed off of Peirce Island Road via a causeway from Peirce Island. The island is carry-in, carry-out.  Restroom facilities are open daily from early April to October 31st (weather permitting).

The Island is a public facility open for all to enjoy. There are several picnic tables and grills on the island for small and medium-sized groups to use without reservation. There are no vehicles allowed on the island. The island is accessed via a gravel causeway that is about 100 yards long.