Grand Lake St. Marys State Park
About this place
Historic canal-feeder reservoir, one of Ohio's largest inland lakes. Coordinate is the lake centroid.
Good to know
SwimmingLimited Four public swimming beaches available; swimming permitted during daylight hours only; visitors swim at own risk
Hours
- 6:00 AM–11:00 PMVisitors permitted to actively engage in legitimate recreational activities outside these hours
What's here
Pavilion
Hiking
Nature center
Location
Grand Lake St. Marys State Park
RegionOhio
Coordinates40.5267° N, 84.5008° W
Get directions ↗ Approximate location — open directions for the live mapCommon questions
Can you grill at Grand Lake St. Marys State Park?
Yes — charcoal grilling is allowed at Grand Lake St. Marys State Park; propane is not confirmed. None for personal grills (designated areas). Always confirm current rules on the official page before you go.
Do you need a permit or reservation?
None for personal grills (designated areas).
Can you swim at Grand Lake St. Marys State Park?
Four public swimming beaches available; swimming permitted during daylight hours only; visitors swim at own risk.
What are the hours at Grand Lake St. Marys State Park?
6:00 AM–11:00 PM · Visitors permitted to actively engage in legitimate recreational activities outside these hours.
