If you can peel yourself away from the beach for a few hours, you may want to consider visiting the old ruins of the Venetian Castle. The Ionian Islands were occupied by the Turks, French, British, Venetians, and Russians at one time, but the Venetians left behind some of the most imposing sites in the form of fortresses on Zakynthos, Kefalonia and Corfu.
The castle here isn’t as impressive as that of Assos Castle in Kefalonia, but it’s still worth a visit if you’re already near Zante Town. The exact date of its construction is still unknown, but it was destroyed by the invading Turks in 1480, but then restored in 1515. Today it stands as a testament to the former glory of Zakynthos as a Venetian military stronghold and visitors can walk through an old prison, gun powder rooms, bastians, churches and an old sewage system.