Myrtos Bay is stunning, that is the easiest way to describe it. We have visitied it on numerous occassions and no matter what time of day you arrive it is always worth the trip.
Olive Grove is set down a road approx 10 mins away from the tavernas, this is a nice gentle walk and is completely flat.
Have been to Svoronata a couple of times and was really impressed with Avithos Beach last year but due to bad storms over the winter half of the beach has disappeared. The beach bar is back and sun loungers were free in June probably 5 Euros a go now! Not overly impressed with the two tavernas there ie food and particulary the service in what was Ormerta was diabolical, I counted 12 tables that had not been cleared when we arrived and when we had our meal the plates were stcking up on the table after each course!