Do not equate an open park with every amenity operating
A property may remain accessible while some permanent facilities are unavailable. Confirm practical restroom access for the group, including distance and the route from the gathering area. Request accessible options against the actual surface and approach. If temporary equipment is needed, have the manager identify an acceptable position before selecting the nearest open space.
Schedule maintenance around camping and boat movement
Describe overnight occupancy and the busiest arrival or departure periods. Keep restroom queues and service-vehicle activity out of boat-ramp approaches or trailer circulation. Ask who checks supplies between visits and how handwashing will be replenished if nearby water is unavailable. Include setup staff and the final cleanup crew in the rental period, not just the public gathering.
Compare the seasonal sanitation arrangement
Request equipment, delivery, pickup, cleaning and handwashing as defined items. State which existing facilities are unavailable and whether people stay overnight. Ask how additional service or an extended stay changes the quote before finalizing the event schedule.