Zamami Island Day Trip Advice

I’ll be in Okinawa for 3 days at the beginning of June and was hoping to do a day trip from Naha to Zamami Island.

Unfortunately, the Queen Zamami high-speed ferry isn’t running on the dates I’m there, and only the regular ferry is available. From what I can tell, the normal ferry timing doesn’t really make Zamami feasible as a day trip since the travel time eats up most of the day.

I was wondering if there are snorkeling boat tours from Naha that go to Zamami / the Kerama area instead?

Would that basically be my only other option if I still want to visit for the day, or are there any other good alternatives people would recommend?

And if snorkeling/day tours are the best option, does anyone have any recommendations?

Thank you in advance!

by Chryslerrx