Cross Bay Boulevard Greenway is a hiking and biking trail in New York City, New York. It is within Jamaica Bay Wildlife Refuge. It is 1.7 miles long and begins at 7 feet altitude. Traveling the entire trail is 3.4 miles with a total elevation gain of 45 feet. Near the trailhead there are beaches. The Jamaica Bay Wildlife Refuge picnic site can be seen along the trail. There is also a coastline along the trail.