Board a usual wooden boat for a conventional caldera excursion, stop for swims, stopover at the volcano
https://elliottzjqm324.nexorafield.com/posts/santorini-photography-tour-capture-blue-domes-hidden-alleys-and-iconic-sunset-shots-3
Board a common wooden boat for a traditional caldera tour, discontinue for swims, talk over with the volcano, and savour onboard stories and snacks.