Thing to Do

Hike to Suzy's Cave

Looking out of Suzy’s Cave sunlight falls on vegetation.
Sun beams fall upon vegetation just outside Suzy’s Cave.


About this Hike

  • Mileage: about 3.8 miles (via Rock Harbor and Tobin Harbor Trails)

  • Rocks and roots on trail


  • Rock Harbor

  • Windigo via Greenstone Ridge Trail

Spend a day exploring Suzy's Cave on Isle Royale National Park. Follow the Rock Harbor Trail 1.8 miles beyond the Rock Harbor Campground and turn inland at the wooden post directing you to Suzy’s Cave. Discover an inland sea arch, formed by wave action some 4000 years ago when lake water levels were higher. From here the trail leads on to the gentler Tobin Harbor Trail, which loops back to Rock Harbor. As you meander through a thick canopy of spruce, fir, and birch, watch moose and other wildlife.

Found Nearby

  • Rock Harbor

  • Rock Harbor Campground

  • Three Mile Campground

  • Rock Harbor Lodge

The duraction of this round trip hike can range from two to six hours. 
Front-Country Hiking
Pets Allowed
Entrance fees may apply, see Fees & Passes information.
Suzy's Cave
Spring, Summer, Fall
Accessibility Information
The trail is about 18 inches wide and is not paved. The trail is covered in rocks and roots. Choose your own adventure: the Rock Harbor Trail is significantly more challenging than the Tobin Harbor Trail. 

Isle Royale National Park

Last updated: February 11, 2022