Board a ordinary picket boat for a basic caldera journey, prevent for swims, discuss with the volcano
https://jaredsmqm757.fotosdefrases.com/santorini-daily-tours-what-to-expect-and-how-to-choose-1
Board a normal wood boat for a conventional caldera excursion, end for swims, consult with the volcano, and savour onboard reviews and snacks.