I was just there at the last full moon on a 50ft Lagoon. There were a lot of mooring balls available at Marina Cay, so we grabbed one around 4:00p. We then sent 2 guys in a dingy to scout out balls in Trellis Bay. We found an open one behind pitiful Last Resort around 5:15, so look there first. If not, you will not have trouble finding one at Marina Cay. Have fun!