Day one
-arrive in Heraklion airport
-renta a car
-drive to ???
-spend the afternoon on Falasarna beach

Day two
-drive to ??
-spend the whole day in the Balos lagoon, maybe have a picnic 

Day three
-drive to ??
-enjoy Elafonisi beach and Kedrodasos beach

Day four
-drive to Heraklion, then Ierapetra
-visit: Knosos palace

Day five
-take a boat tour to Chrissi island

Day six
-drive to ??
-spend the day on Vai beach, the only one with palm trees in Europe

Day seven
-drive to Heraklion
-catch an evening flight back home