Grand Lake St Marys State Park Campground offers 178 campsites with full hook-up, electric, and non-electric options, plus Cedar and Camper Cabins, making it ideal for extended stays near Ohio's largest inland lake.

The campground features a boat launch, courtesy docks, swimming beach (campers only), and direct access to 52 miles of shoreline for boating and fishing, with reservations available up to six months in advance by calling (866) 644-6727.

Additional amenities include a splash pad, dog park, nature center, and multiple trails, with the park office at (419) 394-3611 for questions.