There is no showers or changing rooms that I'm aware of and I've been a resident for pretty much all my life here in the Point Pleasant Brielle Manasquan area there's a parking lot for Day Parking which can cost on the weekends anywhere from 10:15 or $20 street-side curbside parking is allowed and you can park there all day and walk to the dog beach there but it's usually impossible to get a parking spot after 10:30 a.m.
Manasquan Beach has outside showers for rinsing off lined up along the beach, but there are no formal showers and changing rooms.
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