Ferry to Zamami

Hi there, I’m coming to Okinawa May 19-23 for a quick dive trip and had wanted to fit a day trip to Zamami in there.

I’m absolutely kicking myself because I’d researched the ferry reservations months ago and when I went to book this week the day I planned on going is sold out.

Is it worth it to check closer to the day I wanted to go to see if tickets become available? Do they hold a certain number of walk-up tickets as well? As in I could show up early and snag a ticket? I’m looking to get on the 9:00am fast ferry and return the same day on the 5:00pm.

Or would I be better off making alternate plans at this point?

Thank you!

by fever_dreamgirl