Athens in the summer is full of things to do for travelers: Its streets are bustling with energy, and its ancient sites provide visitors with a window into ancient civilization.
“The Acropolis, the Parthenon, and the Temple of Olympian Zeus are just a few of the must-see wonders. And if you’re discouraged by the throngs of tourists who descend on Athens each July, you can visit any of the numerous Greek islands that are within two hours of the capital.”
Source
businessinsider.com