Oludeniz Boat Trip - from Fethiye - Intro The whole family will love the Oludeniz Boat Trip, which takes you on a memorable cruise along the Bays of Oludeniz where you can swim in the warm waters of the Blue Cave, see for miles from ancient ruins, explore Butterfly Valley, enjoy a tasty lunch on board the boat and much more! Oludeniz Boat Trip - from Fethiye - Overview Enjoy a boat trip to the Bays of Olundeniz. Swim in the Blue Cave and stop at Butterfly Valley. Visit the ruins of St. Nicholas Island and swim at Cold Spring Bay. Includes lunch on the boat and round-trip hotel transfers. Oludeniz Boat Trip - from Fethiye - Full Details The Oludeniz Boat Trip from Fethiye takes you on relaxing, family-friendly cruise along the beautiful Bays of Oludeniz. During this full-day trip you\'ll have time to swim in the azure-blue waters of the Blue Cave and explore Butterfly Valley where, if you are lucky, you may catch a glimpse of the rare Tiger Butterfly. After an indulgent lunch on the boat (included), climb to the top of the ancient ruins on St. Nicholas Island for spectacular views over the Bay. Finally, enjoy a refreshing dip at Cold Spring Bay, where the cool spring water flows down the mountainside and into the sea, before beginning the scenic return journey back to your resort.