Board a classic wood boat for a classic caldera tour, end for swims, discuss with the volcano
https://chanceppdt853.scriblorax.com/posts/how-to-find-a-tour-on-santorini-insider-tips-for-santorini-day-tours-and-vip-experiences-2
Board a traditional timber boat for a traditional caldera travel, discontinue for swims, seek advice from the volcano, and revel in onboard reports and snacks.