Board a traditional wood boat for a traditional caldera journey, end for swims, go to the volcano
https://finnvvmx823.quantlynix.com/posts/how-to-find-a-tour-on-santorini-a-complete-2025-guide
Board a traditional timber boat for a basic caldera excursion, stop for swims, consult with the volcano, and appreciate onboard studies and snacks.