Shoals Marine Laboratory (SML) is a seasonal marine field station located on Appledore Island, Maine, in the United States. Appledore Island is the largest of the Isles of Shoals archipelago, a group of rocky islands just offshore of the coastline of Maine and New Hampshire. The laboratory is cooperatively operated and maintained by Cornell University and the University of New Hampshire. Shoals is a residential facility where participants and staff live together in a close-knit learning community. SML's academic program runs from May through August to accommodate off-campus study for undergraduates. Limited access for research can be arranged during the off-season. Access to Appledore Island is provided by Shoals Marine Laboratory vessels operated by laboratory personnel.