Keri Beach in Zakynthos is a gorgeous, pebble-filled seashore facing the small island of Marathonisi! It has a stone-filled seabed at first, though it then becomes a smooth, sandy bottom, making it ideal for both swimmers and snorkelers due to its fantastic, crystal-clear waters! On top of that, Keri is known for having a lengthy strip where large trees provide more than adequate shade over the beach!