For beauty & photography, Katharos Lounge is hit or miss.
A boho, low-key spot on the rocks north of Oia, with a beach-bar feel and an open view of the Aegean. The defining trait the name now spells out: it is a vegan/vegetarian meze bar — widely cited as the only fully vegan kitchen on Santorini. That makes it a genuine destination for plant-based travellers and a deliberate steer-around for a steak-and-fresh-fish group. People come for sundowners and a mellow, meat-free dinner away from the caldera-sunset mob.