Board a common timber boat for a classic caldera excursion, cease for swims, go to the volcano
https://rylanlmzn691.quantlynix.com/posts/santorini-guided-tour-or-self-guided-pros-cons-and-costs
Board a usual wooden boat for a traditional caldera tour, give up for swims, go to the volcano, and get pleasure from onboard reports and snacks.