You can buy at the door :)

8 EUR for adults and teenagers. 4 EUR for younger children.

Just pop in the gentleman on the desk will give you good background to the aquarium as you buy your tickets. Him and his staff are very enthusiastic about what they do.

Bonjour Sonia, C'est très facile. Il y a des bus publics toutes les 30 minutes de Stalis à Hersonissos. Demandez à descendre à l'arrêt numéro 20. En descendant du bus, tournez à gauche et longez le trottoir. Traversez la route principale lorsque vous voyez le grand supermarché de l'autre côté. Remontez la rue adjacente à l'entrée du supermarché et vous nous trouverez sur la gauche à environ 50 mètres :) Hâte de te voir... Meilleures salutations John

Yes, Aquaworld is open every day except Sundays from 1st April until 31st October. Entrance cost is 8 for adults and teenagers, 4 for younger children

We went at midday on a Monday too as we were leaving that evening. It was fairly busy but not uncomfortably so. I had a lovely cuddle with a big snake.

the bus from Heraklion to Malia and then busstop 19 . the walk the way up at the supermarket on the corner. you'll see the sign AQUAWORLD with an arrow

From the Héraklion busstation near the port take the one to Chersonnisos.

Just about 4 km - straight through the main street of Hersonissos and then turn left at the supermarket Halkiadakis. Then we are just 50 m or so up the side street.