A not well-known beach of Sithonia, located between Nikiti and Ai Yiannis. It has two small bays that end in a cape with its characteristic rocky island. The water is clean and shallow while the sea bottom is sandy. It is easily accessible by car, although you should first locate the narrow road that leads to the beach. There are not any facilities on the beach, so you should bring your own equipment, like umbrellas or sea chairs with you.
Many archeologists support that the area of Castri cape was the location of the ancient city of Galipsos that is referred in Herodotus. It is certain that there was an ancient settlement in the area. There are remains of fortifications on the island while there is an ancient cemetery discovered close to Ai Yiannis beach.