The islands of Grandes is a complex of three small lowland rocks in the province of Sitia, about half a mile opposite the beautiful beach of Hiona. In fact, the largest area (300 acres) is occupied by the middle island, known as Prasonisi, which is oblong and has the highest altitude at 31 meters. In the middle of the island there is a beautiful beach with two tamarisk trees, surrounded by rocks.
The southernmost island is called Savoura and is almost round in shape, while the northernmost and smaller island is called Paximadi and is essentially a large rock. The islands have been declared a protected archaeological site, while their shallow and rocky seabed is home to shipwrecks.