Hard to pick my favorite part, as the entire experience was delightful. Great crew, spotlessly clean ship, great food and amazing sites. Leo, our expert Captain (through some rocky waves) let my wife take the helm for a moment in calmer seas. If I have to identify one highlight, it would be the stop at the mineral hot springs off the boat. Just a word of caution: even though they give you a flotation donut to wear, you still need to be a good swimmer to make your way back to the boat. Regardless, it was so exciting, and an amazing experience to feel that warm water hit you as you get closer to the bay shore. We traveled in early October and still had a nice warm day. Took an earlier plunge in the water, and although slightly cool initially, I got used to it- about 75F. The Aegean Sea is so salty you float very easily. Spectacular!