Grand Lake St. Marys State Park in OH has 8 open booking windows on its reservation system right now, the soonest Jul 21–Jul 24. Reserve directly through the booking link above — cancellations go fast. To catch future openings the instant they appear, set a free CampSage cancellation alert.
📅 Open dates
Jul 21 – Jul 243 nights👥 19 sites together · 2 next to each othersites 063, 064, 080, 091, CC 6, CC 7
Jul 21 – Jul 232 nights👥 55 sites together · 9 next to each othersites 027, 037, 053, 054, 055, 056
Jul 22 – Jul 242 nights👥 7 sites together · 3 next to each othersites 005, 051, 073, 114, 172, 173
Jul 23 – Jul 263 nightssites 216
Jul 23 – Jul 252 nightssites 1EB
Jul 26 – Jul 293 nights👥 33 sites together · 2 next to each othersites 003, 004, 038, 049, 052, 065
Forecast for this campground's coordinates, from the US National Weather Service. Mountain campgrounds can differ sharply from the nearest town — check before you go.
How do I reserve a campsite at Grand Lake St. Marys State Park?
Grand Lake St. Marys State Park in OH takes campsite reservations through Recreation.gov. On this page, use the “Book / check availability” button to open the live booking page, see which dates are free, and reserve your site.
How can I get a spot at Grand Lake St. Marys State Park when it's fully booked?
Popular campgrounds like Grand Lake St. Marys State Park often fill months ahead, but campers cancel every day and those sites reopen for booking. CampSage checks availability for you and sends a free email the instant a cancellation opens — set an alert on this page and you can grab the spot before anyone else.
Where is Grand Lake St. Marys State Park located?
Grand Lake St. Marys State Park is located in Toledo / Northwest, OH. Tap “Directions” above for driving directions, or see nearby campgrounds lower on this page.
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