A very good day out and very much enjoyed by my husband and I. There was lots of different, comfortable, seating available, both in the sun and in the shade, plus a downstairs area of benches and tables.
Lunch could have been better - chicken, pasta and their version of salad, plus two slices off a french roll, all dished up on a plate, which was then handed out. It was enough for me, but my husband was still hungry afterwards. I would suggest you take snacks with you if you have a bigger appetite. Drinks can be purchased onboard.
Later on pancakes were offered for sale, but I wouldn't recommend those.
The boat makes about 6 stops where passengers can swim in the amazing blue, clear water and things like pool noodles and I think snorkelling gear are provided for use.
The one thing which really spoilt this amazing experience for us and I believe other passengers as well, was the blaring music - Turkish, eastern whatever - which was played all day, except for when the boat made a stop. When the music was turned off and you could enjoy the peace and quiet, it was magical, but the minute the boat started up again, the blaring music was put on again and an audible groan could be heard from the passengers.
Nevertheless, I definitely would go again.