The most beautiful summer activity in Athens is taking place in the Sounio area - the most impressive area that you will see close to Athens. The crystal light blue water of the Aegean Sea with the gorgeous rocks of the coastline offers endless adrenaline. The coasteering activity combines the high jumps from the rocks, swimming, snorkeling, and climbing in the rocks above the sea - on the coastline below the Poseidon Temple. Coasteering can be determined as the absolute summer activity in the Attica region.