We were all "Ruined" out so we took this opportunity to visit "The best Waterpark in Europe" and yes, I'd go along with that ADALAND was brilliant.
To get there, we exited the port and walked left along the waterside until we came to the statue of the white hand with black and white birds landing on it (about half a mile's walk from the ship)when you get there, look at the Hotels alongside you, one is called Hotel Derici, cross the road and stand outside it,little white minibuses (Dolmus)take you to Adaland for 2.75 Turkish Lira. Make sure you check that you are on the correct bus ( just ask for Adaland) the buses run every 5 minutes. To hail the bus just stick out your arm and they'll stop.
Adaland was 24 euros each, which includes all slides, you can pay extra to go into the Dolphin park and the Sealife park but we found we were too busy on the slides to visit the other areas. You can load money onto a card they give you which saves worrying about having money with you. Make sure you load your card with cash - they will refund unspent cash as you leave but they won't refund money put on via Visa or Mastercard.
The wavepool and dance fountains operate at various time during the day.
I highly recommend this waterpark. It was great!