Boat launch with a walking area down by the river. Good place to jerk off in your car, have someone drive up next to you and watch or come and help you. Take a walk down the walking path and find areas by the river to have sex. The porta-potty with a glory hole is no longer here.
Showers seem like an easy place to cruise. Close proximity of each other, leave the curtain open a crack and see if any one bits. Private shower area, open urinals for urinal so just be respectful