Before the invention of the boat, the most efficient way to make it from one shore to another was to bribe Bigfoot to throw you over. Navigate the waters without Sasquatch with today's Groupon: for $9, you get one adult ticket to a Patoka Lake boat tour from Patoka Lake Marina & Lodging in Birdseye, Indiana (an $18 value). Tours are offered on Wednesdays from 2 p.m. to 4 p.m.

Located near Hoosier National Park, Patoka Lake Marina & Lodging teems with the area's wildlife, including ospreys, loons, herons, and the elusive bald eagle. Climb aboard the marina's new 60-foot Patoka Voyager for a two-hour tour of the picturesque lake and relax as a guide takes you along the scenic shoreline, detailing Patoka Lake's history and singing children’s lullabies. There's a cash bar available, as well as indoor or outdoor seating. Though not included in today's Groupon, the Patoka Grill stands there ready to fuel up tour-goers before or after the trip. Those who prefer the thrill of catching their own dinner can cast their lines in the lake for bass, bluegill, catfish, and walleye.