Board a average picket boat for a classic caldera journey, discontinue for swims, go to the volcano
https://hectoropne629.urbanvellum.com/posts/santorini-best-tours-for-foodies-wine-olive-oil-and-farm-to-table
Board a usual timber boat for a basic caldera travel, give up for swims, consult with the volcano, and experience onboard experiences and snacks.