Located at the south end of Grand Island in the upper Niagara River, this 950-acre park has a half-mile sandy beach for swimming and an adjacent 80- slip marina with both seasonal and transient boat slips. The park also boasts an 18-hole championship disc golf course, an 18-hole championship golf course.
 

Rich in history, Beaver Island State Park encompasses the River Lea House and Museum, home to the Grand Island Historical Society and built by William Cleveland Allen, cousin to Grover Cleveland, who visited the family farm on several occasions. 
 

Other amenities include fishing access, car-top boat launch as well as multiple canoe/kayak launches, bike and nature trails, nature center, playgrounds, picnic areas, athletic fields and horseshoe pits and Beaver Island Clubhouse, which offers banquet and catering facilities. In winter, visitors can snowmobile by permit, cross-country ski, snowshoe, sled or ice fish. Water fowl hunting is allowed in season by permit. Household pets are allowed but must be leashed.