Adiavati Reef

The reef is a caldera-wall dive tucked inside the flooded crater beneath the 300m Akrotiri cliffs, so the entire landward sector (S through E) is blocked by the island mass. The wall faces NNW across the basin, but the Nea and Palea Kameni volcanic islets sit directly to the north and screen the site from anything driving straight down the caldera, so the dominant Aegean Meltemi (N-NW) only reaches the reef after funnelling through the open caldera mouth between Thira and Thirasia. That leaves the WNW-NW sectors as the one meaningful window, tapering off through W and into a much weaker, Kameni-shadowed N. The sheltered geometry is exactly why operators use Caldera Beach as their reliable all-conditions base.