The island of Crete has really beautfiul and unique beaches. Here are few suggestions.
Spilies beach, which means caves in greek, is situated close to the hotel. The beach is surrounded with cliffs, where you can arrange a boat trip and see the caves. It is not so crowded, so it is the ideal place to relax if you do not want to drive long.
Preveli is located about 35km south of Rethymno is one of the most famous beaches of south Crete. What makes it unique is the palm tree forest right above the banks of the river that flows to the sea. You can walk along the river, under the shade of palm trees and other trees, and start ascending in the beautiful canyon. You can also swim in the cold ponds formed in the gorge.
The village Rodakino is located 45km southeast of Rethymno city. 2km south of the village, there are several beautiful and tranquil beaches. It is a long beach with fine grayish pebbles and wonderfully clear waters, well organized with umbrellas, taverns and some rooms to rent. In its east end, there are cavernous rocks; locals say that before getting eroded by sea and salt they looked like a crow’s beak.