I forgot to mention something else about Greece. They offer these attractions and since I was a kid back then, we went to Waterland. So the Greek cities are not only for adults, but also for children. Of course there was an additional pay for it, but it was all worth it. If I remember correctly, they had a wave pool, 4 different slides, then this slide where you get stuck and have to unstuck yourself but letting others behind you hit you forward and they also had tons of smaller pools for little ones as well as horse riding (It was too expensive for me to pay for it so I didn't end up riding any of them...lol).
But here is a video and some small pics for parents if you want to take your kids somewhere fun - wait, for kids, if you want to see your parents when they're off the hook. Hey, my mother tried the white slide which was almost 90 degrees, so yeah.
