Mary Island State Park is located in the Thousand Island region of New York and is known for its scenic views and outdoor recreational activities. The park is situated on an island in the St. Lawrence River and is accessible only by boat.

There are many good reasons to visit Mary Island State Park, including its beautiful natural setting, diverse wildlife, and opportunities for hiking, fishing, and boating. The park is also home to several unique points of interest, such as the historic Mary Island Lighthouse and the Thousand Islands Nature Center, which offers educational exhibits and programs.

Interesting facts about the area include its history as a popular vacation destination for wealthy families in the late 19th and early 20th centuries, and the fact that the St. Lawrence River is considered one of the cleanest and clearest rivers in North America.

The best time of year to visit Mary Island State Park is during the summer months, when the weather is warm and the park is open for outdoor recreational activities. However, visitors should be aware that the park is only accessible by boat, and that some facilities may be closed or limited during the off-season.