The top things to do in Cyclades are: Santorini: Volcanic Islands Cruise with Hot Springs Visit Santorini: Premium Catamaran Cruise with Fresh BBQ & Drinks Santorini: Luxury Small Group Catamaran w/ Meal & Open Bar Santorini: 1-Way Transfer to/from Port or Airport From Mykonos: Delos Guided Tour with Skip-the-Line Tickets Explore the best things to do in Cyclades on GetYourGuide