Clearing Customs Prior to Arrival
Recreational boaters intending to arrive at Isle Royale from Canada must clear customs prior to arrival. This can be done ahead of time in one of three ways:
Learn more about U.S. Customs and Border Protection's pleasure boat reporting requirements.
Customs clearance on-island is a last resort option. Rock Harbor is the only entry location where customs clearance is available. If you did not clear customs prior to your visit, expect long wait times (multiple hours) for park law enforcement officials to become available.
Private Seaplane Customs
Customs clearance for private seaplane passengers is not available on Isle Royale. Private seaplaners flying to Isle Royale from Canada need to go to a mainland port of entry prior to arriving on-island.
Last updated: August 14, 2023