Yes, Jones Beach State Park on Long Island, New York, provides public showers for its visitors, though they are primarily designed for "rinsing off" rather than a full private bathing experience. You can find outdoor rinse-off stations located near most of the major bathhouses (specifically at Field 4, Field 6, and the Central Mall) which are essential for removing sand and salt after a day in the Atlantic. These are typically cold-water showers located on the exterior of the buildings. Inside the main bathhouses, there are also indoor changing rooms and shower stalls, though the availability of hot water is often limited or non-existent in the public facilities. These amenities are free to use, though there is a fee for vehicle entry to the park itself. It is important to note that the showers are seasonal and are usually only fully operational during the peak summer months (Memorial Day through Labor Day). If you are visiting during the "shoulder" season, the indoor facilities may be closed or have restricted hours. Most regular visitors recommend bringing your own towel and toiletries, as the park does not provide these, and the facilities can get quite crowded during the late afternoon as everyone prepares to head home.