What would it cost 2 adults to stay in the park 4 days?
A user fee of $4 per person per day is charged while visiting Isle Royale National Park. Two adults for four days would run $32. If each adult were to spend 13 or more days on Isle Royale or wanted to contribute towards the support of the National Park Service, they could purchase one of the optional passes, Individual pass for $50.00 or a season boat rider pass for $150.00.
