I would definitely call. I did the reservation online and received no confirmation reply so I emailed Nick and he responded promptly but when pressed with confirmation he said “just come in”. I did not want to press him so I went on the designated day and got a ball dinghyed to dock and found out there was no reservation. Luckily they gave me a spot on the T where the fueling is done otherwise I would have stayed on the ball with the same use of amenities but no electric hookup.