Grand Lake St. Marys State Park to Host Boating Education Course Saturday03/25/2026A boater education course will be hosted this weekend by Grand Lake St. Marys State Park. The Ohio Boating Education Course will cover topics like knowing your boat, safe operation, legal requirements, emergencies, and more. The class fulfills Ohio’s boater education law requirements, and a passing grade will earn a lifetime card. The one-day class is on Saturday at the Celina Water Treatment Plant. It’s free to attend and you can register by calling the Grand Lake St. Marys State Park office at 419-394-3611. Click here for more details from the Ohio DNR.