​​​​​Grand Portage Isle Royale Transportation Lines

Day Trips To Isle Royale National Park

Grand Portage Isle Royale Transportation Lines offers day trips to the island aboard the Sea Hunter III.  We depart at 8:30 am from Hat Point Marina in Grand Portage, MN.  *For late September day trips aboard the Voyageur II see "Schedules" below. The boat passes and pauses at several points of interest including the Spirit Little Cedar Tree (or "Witch Tree"), a 400+ year old white cedar on the Lake Superior shoreline; the shallow water wreck of the 182' steamship America; and the imposing Rock of Ages Lighthouse, along the way out and back from Isle Royale allowing time for photos and viewing (weather permitting). We arrive on the island around 10:00 am, and the Park rangers will welcome you to take part in planned activities including guided hikes and programs, or you can plan your own stay. Sea Hunter III passengers have 4 hours on the island, allowing plenty of time for hiking, a picnic lunch, shopping for souvenirs and snacks at the Windigo Store, exploring the exhibits at the visitor center, or just relaxing. Then we reboard for a 2:00 pm departure and get back to the marina around 3:30 pm, leaving plenty of time to visit other places of interest in Grand Portage or get to your next destination.

Please Note The Following:

  • We strongly recommend that you make your reservations for both boats at least a month to two months in advance, as they tend to sell out. 

DEPART: Grand Portage, MN - 08:30 AM CDT
ARRIVE: Windigo, Isle Royale Nat. Park - 10:00 AM CDT
DEPART: Windigo, Isle Royale Nat. Park - 02:00 PM CDT
ARRIVE: Grand Portage, MN - 03:30 PM CDT

 June 9th - July 10th: to and from Windigo Wednesday, Friday, and Saturday

July 14th - August 15th: to and from Windigo Wednesday, Thursday, Friday, Saturday, and Sunday

August 18th - September 4th: to and from Windigo on Wednesday, Friday, and Saturday 

*Sept 18th, 19th and Sept 25th, 26th: To and from Windigo Saturday and Sunday aboard the Voyageur II (departs 8:00 am outbound from Grand Portage and departs 1:00pm inbound from IRNP)

PLEASE NOTE: There are no day trips available from September 5th through September 17th.

Departure Times

Passengers must be at the boat dock and prepared to board 20 minutes prior to departure from Grand Portage and 15 minutes prior to departure from Isle Royale on the way back. 


$87 Day trip passenger over and back in the same day
$80 Day trip passenger under 16 years of age


All reservations require a full fare remittance at the time of the reservation. A reservation is not confirmed until payment is received. Payment can be made by Visa or MasterCard only. 

National Park Entrance Fee
For information about the daily entrance fee and park passes please CLICK HERE. Keep your pass or proof of entrance fee payment on your person during boat transportation as you will need to present it to park personnel upon arrival.

Gear Restrictions
Each passenger is allowed up to 40 lbs of gear. If you will have over 40 lbs of gear you will need to call our office ahead of time to pay an extra charge (see cost on our Rates page) and reserve room on the boat for it.  
Our vessels may not be able to accommodate walkers or wheelchairs. Please call us for more information. We are not able to accommodate power scooters on our boats.

Weather Conditions

Our boats traverse the largest of the Great Lakes during many weather conditions. Wind speed and direction on any given day determine wave size that may affect your comfort on board. In addition, as the boat moves through the water even smaller waves may cause spray on the decks, and our vessels travel rain or shine. Based on cabin size, not all passengers will be able to sit in an enclosed area; seating for some will be on the outside decks. For these reasons we suggest passengers bring their rain gear with them in case. Please keep in mind that the lake is typically 30 to 40 degrees cooler than the air temperature on the mainland. Dress accordingly, in layers, and include a jacket and long pants. Our crew is dedicated to your comfort and safety and we ask that you come prepared for Lake Superior's varied weather conditions.

Cancellation Policy 

Please read and understand our cancellation policy before making a reservation. 

All reservations cancelled at least two full weeks prior to the scheduled trip date are subject to a 15% fee, and 85% of fare will be refunded. If a reservation is cancelled within two weeks or if you fail to arrive on your departure date ("No Show") there is absolutely NO REFUND, nor are ticket transfers to other persons allowed within that time frame. Our cancellation policy is non-negotiable regardless of circumstances.

If WE cancel a trip due to weather or any other reason you will receive a full refund of all fares. However, since weather cancellations are never made prior to departure time you must be present and check in with our office staff to receive the refund. If you are not present you will be deemed "No Show" and will forfeit your refund.

​Reservation Changes
If you need to change your itinerary on an existing reservation to a different day than you booked you may do so by calling our office. Changes are subject to availability and there will be a $10 charge for this service. Making a change to the date of a trip is not allowed within two weeks of the initial departure date. 

Covid-19 Risk Acknowledgement
During the COVID-19 pandemic, GPIR Transportation Lines will strive to keep our passengers as safe and healthy as possible. However, customers must acknowledge the possible risk of exposure to COVID-19 while participating in a trip onboard a vessel with other passengers. Our Covid-19 protocols are an integral part of our terms and conditions and passengers must agree to abide by them. With your ticket purchase, you and the members of your group waive all claims against GPIR Transportation Lines in the event of exposure to, or infection by, the COVID-19 virus. 

Have you read, and do you agree to the preceding policies?
If so, please click "I AGREE" to continue with ONLINE BOOKING.