Since Sherwood Island State Park is on Long Island Sound, there is not much tide or wave action. The water is brackish and not very appealing for swimming. Its easy access to Rte 95, which runs along the coast of CT, makes it attractive to families and groups from NYC. The park is usually crowded during the summer. Many visitors pay no regard to their trash, their pets' poop, or show consideration for others in terms of noise. There are many Canada Geese and gulls here, attracted by the bread, chips, and fries people leave behind or feed them. What goes in must come out, so there are minefields of goose poop all over the grass and some on the beach. The best time to visit is before or after the official season is in full swing. The concession stands might not be open as long or offer as many options as during the season, but the fewer crowds, noise & trash strewn around make for a more enjoyable visit.