In Crete – the Samaria Gorge is Amazing! It is Europes largest gorge and pretty much all down-hill. Once you reach the end you can jump right into crystal clear waters for a swim, have a nice greek salad or meal at one of the cafes on the water and then hop on a boat back to whatever city you are staying in – highly recommended! Also, go to some of the smaller towns on the southwestern side of Crete – not so touristy and very tranquil. Enjoy!