Information on:

Grand Lake St. Marys State Park

834 Edgewater Drive

Originally constructed as a feeder reservoir for the Miami-Erie Canal, Grand Lake St. Marys was for many years recognized as the largest man-made reservoir in the world. The 13,500-acre lake is the gateway to swimming, boating, camping and fishing in one of Ohio's oldest state parks.


Wildcards Rex

Monday, July 9, 2018
I've been going to Grand Lake St. Mary's my entire life. I have family in Celina so we would go often for the Lake Festival, the Mercer County Fair, or other family outings. We went this past Sunday to watch The McCartney Project play in a park, with the lake as a backdrop. The lake is green, so it's not exactly the healthiest body of water to fully enjoy water activities.

Alice Brown

Friday, June 8, 2018
This place is great. Beautiful scenery, wildlife, and park. There's picnic areas, boat rentals, lakeside grill, concert stage, even a lighthouse you can go in. I highly recommend this park for anyone. Great get away and many activities for kids and families as well.

Tim Lehman

Monday, May 28, 2018
We go to relax, when the grandkids are with us we love the pool and splash pad. If we're not fishing or at the playground. They also love to play putt putt golf and getting ice cream at the store. Sitting around the campfire is very relaxing also. Usually quiet at night

Candra Canniff

Monday, May 14, 2018
It's so beautiful a great place to take the family for a picnic. Walk the trail enjoy the beauty of what is around. Places to eat ,swimming beach, tables to relax plus much more. I strongly recommend visiting

Cindy Yoder

Wednesday, June 13, 2018
Very nice and clean. New pool. It was well worth the 3 HR drive for us. Monday thru Thursday stay. Not crowded.

Grand Lake St. Marys State Park is not affiliated with AmericanTowns Media