Join a geology-centred tour explaining eruptions, layered cliffs, and pumice landscapes

https://guide-varna.com/xenagisi-sti-santorini-me-ntopio-odigo-o-pio-exypnos-tropos-na-deite/

Join a geology-focused excursion explaining eruptions, layered cliffs, and pumice landscapes, with stops at viewpoints and the volcano.