Santorini caldera
The volcanic eruption in Santorini created a caldera that literally sink the most part of island and created a giant lagoon in the middle. A caldera is formed after large volumes of magma erupt. Then the support to the ground is lost and this leads to the collapse of the surface. In Santorini's case the caldera is filled with sea water. As the magma from the volcano flows to the surface, it builds up to form cones of material. In the center of this lagoon two small islands emerged as a result of this volcanic activity. The islands Kameni and Nea Kameni are only the visible cones while there are many other hidden beneath the sea.
Photo taken at Santorini caldera

Καλό μήνα με υγεία!!! Απέραντη ομορφιά!!!
@nikostsil_photography καλό μήνα!
@xxpyz
Τι ομορφια θαλασα ειναι καλο μηνα απο την Τουρκια
Super
Καλο μηνα!!! Να εισαι καλα!!! Καλο καλοκαιρι!
Какая красота! Смотришь, и наполняешься любовью!
Κ.α.τ.α.π.λ.η.κ.τ.ι.κ.η!! Καλό μήνα Γιάννη!
@euageliatzortzi @helinvanhethof καλό μήνα! Καλό καλοκαίρι!
@iriska_3587 @syl_photographies @ivanasataric
@so.sarafoudi καλό μήνα! Καλό καλοκαίρι!
Amazing
@ggfra_soul
Απεραντη ομορφια Γιαννη️️καλη νυχτα
@toulasack
Magnifica
@giocuce