Reservations, modifications and cancelations

When the booking window opens, inventory becomes available Monday through Friday at 8 a.m. and Saturdays and Sundays at 9 a.m.

• Campsites, overnight lodging and harbor slips can be reserved 6 months in advance.
• Picnic shelters can be reserved 1 year in advance.

Visit MiDNRReservations.com or call 1-800-447-2757 to make a reservation. 

Harbor slips, campsites and state park lodging not already reserved in advance may be available on a first-come, first-served basis.

Reducing the number of nights after a camp is established at the park

Once checked in at the park, if you choose to reduce the length of your stay a refund will be calculated as a percentage of unused camp night fees based on the number of months the reservation has been held (see sliding modification/cancellation formula below).

If you check out before 1 p.m., that night’s camp fees will be included in the refund formula. If you check out after 1 p.m., that night’s camp fees will NOT be included in the refund formula.

Modification and cancellation policy

You may cancel or modify your camping reservation online at MiDNRReservations.com or by calling 800-447-2757. Please note that the original nonrefundable reservation fee, a cancellation fee and a reduced-stay fee will be assessed.

Once campsite reservations are made, they cannot be canceled or modified more than five months before the arrival date.

The following fees will be assessed if you cancel or modify your camping reservation:

1. Nonrefundable reservation fee (paid at the time a reservation is booked): $8 for reservations made online and $10 for reservations made through the call center.
2. $10 cancellation/modification fee.
3. Reduced-stay fee (an incremental fee determined by the length of time a reservation is held and the number of eligible nights canceled); see sliding modification/cancellation formula below.
   1. If canceled or modified before the arrival date, all unused camp nights are eligible for the reduced-stay fee according to the sliding modification/cancellation formula.
   2. If canceled on the day of arrival or later, the first night’s fee and the cost of any nights that have already passed will be charged at the full rate. Any remaining unused nights are eligible for a refund using the sliding modification/cancellation formula.

Reservations that are canceled on the same day the reservation was created will be assessed the $10 cancellation/modification fee only.

Modifications to reservations that do not affect the length of stay will be assessed the $10 cancellation/modification fee only.

Modifications to reservations that result in an increase in the length of stay will be assessed the additional nights’ fees only and NOT the $10 cancellation/modification fee.

Reservations are held until 3 p.m. one day after the scheduled arrival date. Failure to check in within 24 hours of the check-in time will result in a “no-show” status and will incur the loss of two nights' fees, the reservation fee, $10 cancellation fee and the reduced-stay fee (assessed on remaining unused nights using the sliding modification/cancellation formula).

Sliding modification/cancellation formula

_{Tags: cancel reservation, change reservation, modify reservation, campsite reservation, camping reservation}

• The original reservation fee is non-refundable
• Overnight lodging can be reserved 6 months in advance (policy updated May 1, 2024). 
• When the booking window opens, inventory becomes available Monday through Friday at 8 a.m. and Saturdays and Sundays at 9 a.m.
• Changes and cancellations cannot be made more than 5 months in advance of arrival date.
• Cancellations made any time after processing this reservation until the close of business the day before your scheduled arrival date will incur a $10 cancellation fee for overnight lodging (ie. cabins, yurts, pop ups) and $50 for modern lodges. If you cancel on your day of arrival or later, you pay a $10 or $50 (modern lodges only) cancellation fee and forfeit the first night’s camping fee as well as the fee for each night that has passed.
• Reservations are held until 3 p.m. one day after the scheduled arrival date. Failure to check in within 24 hours of the check-in time will result in a “no-show” status and will incur the loss of two nights' fees, the reservation fee, $10 cancellation fee and the reduced-stay fee (assessed on remaining unused nights using the sliding modification/cancellation formula).
• Changes to this reservation prior to your day of arrival (i.e. change of dates or change sites within the same park) will incur a $10 modification fee.

• The original reservation fee is non-refundable.
• Changes and cancellations cannot be made more than 5 months in advance of arrival date.
• Cancellations made any time after processing this reservation until close of business the day before your scheduled arrival date will result in a refund of fees paid minus the non-refundable reservation fee. For cancellations/modifications made on the day of arrival, you'll forfeit the non-refundable reservation fee, the first night's dockage fee and any night’s dockage fee that has passed.
• Reservations are held until 5 p.m. on the scheduled arrival date. If arriving after 5 p.m. on the scheduled arrival date, you MUST contact the Harbormaster to notify staff of late arrival. If you're late, and you fail to call, the reservation will be cancelled as a no-show with the loss of a two-night fee.

• The original reservation fee is non-refundable.
• Changes and cancellations can be made anytime after a reservation has been created
• Cancellations made any time after processing this reservation until the close of business the day before your scheduled arrival date will incur a $10 cancellation fee. If you cancel on your day of arrival you forfeit the shelter use fee.
• Reservations are held until 8 p.m. on the scheduled arrival date. Failure to register on arrival will result in a no-show cancellation with the loss of all fees.
• Changes to this reservation prior to your day of arrival (i.e. change of date or change of shelters within the same park) will incur a $10 modification fee.