Wayne.B wrote:
Try on VHF channel 9 or 16 when you are in sight of the marina. If
they don't answer, look for the fuel dock or office and pull in close
enough to hail them.

Sometimes they're on channel 13 or 9; but most marinas in the US seem to
monitor 16.

The USCG is also monitoring and will interrupt you if you start chatting
on Ch 16. They're a lot more touchy about this than they used to be.

Doug King