Spa Treatment Offering Inner Balance and Rejuvenation. In Kassandra Bay Resort Spa, we have created a place where you can just relax and surrender to serenity. Treat yourself to the most sumptuous massage sessions and indulge in the utter rejuvenation that is achieved through hammam and sauna, Jacuzzi. Try out our Aqua sports, our yoga and Pilates classes and visit our fitness centre for getting the most out of every day in Skiathos. You will feel healthy and light, happy and radiant.