Wellesley Island State Park
A state park on an island in the St. Lawrence River in the heart of the Thousand Islands with a nature center, sandy beach, campground, and hiking trails. The Minna Anthony Common Nature Center has over 600 acres with 8 miles of trails through diverse habitats. Kids love the nature museum with live animal displays and the beach on the river is clean and has a gradual entry. The campground has 430 sites. Watching huge freighters pass through the St. Lawrence Seaway from the shore is mesmerizing for kids.