We went 2nd week May so very quiet (suited us down to the ground, but what a place Icmeler is! We will definitely be going back. Grand Aquarium was excellent, very clean and staff were great. Only 20 mn walk to town, we did it every day, but plenty of taxis & buses if preferred. Local supermarkets and restaurants if you don't want to go into town.
Thanks for putting those pics on they are lovely. We are going to the Grand Aquarium today, we fly at 5pm, so it was brilliant having a look beforehand