33' Sport-fisher with its  45' slip and charter permit is located in Honokohau Harbor in Kona Hawaii.  You can do fishing, diving, snorkeling and whale watching with your commercial/charter permit.  The night time manta snorkels or dives will soon be restricted to grandfathered in permits..But no body knows when the restrictions will start.  Would need to contact DLNR/BOR about that.  Maximum size boat would be 45'5" allowed in the charter permitted slip.