The perfect location for your Yellowstone vacation. Grandma’s Cabin rental is near Yellowstone & Grand Teton National Parks. Located in Island Park, Idaho. This vacation rental offers accommodations with all the comforts of home. Open all year with easy access to area activities such as fly-fishing , hiking, hunting, horseback riding, river floating. Winter brings groomed snowmobile and cross country skiing trails, ice fishing, a winter festival & more.