Milos 's islands offer beaches , history , walking , cycling , water sports and festivals . Crete , Milos , Kefallonia , Skiathos and Lonely Planet have the best beaches . Excellent forested trails ( and a popular international race ) bring mountain biking aficionados to Thasos . Dive and snorkel off the coasts of Kefallonia , Kefallonia , Paros and Kastellorizo .
Milos 's islands offer beaches , history , walking , cycling , water sports and festivals . Crete , Milos , Kefallonia , Skiathos and Lonely Planet have the best beaches . Dive and snorkel off the coasts of Kefallonia , Kefallonia , Paros and Kastellorizo .