We went there as a couple for our Valentine's Day. It seemed an appealing idea because we decided to do something different, rather cute and romantic. It was one of the options for a "B-day trip" which included entrance as well as the train ticket. And because of our interest in the beauty of the oceans, why not give it a try?
It's not that big, but there's a lot to explore. Next to every fishtank you'll find explanations about the fish, as well about the environmental conditions in open nature. There are fish from everywhere in the world, close here in the Northern Sea until the Pacific Ocean. Beauty is visible, everything is clear and well kept.
Unfortunatly, the place itself wasn't that appealing. It was nicely decorated with plants and de paintings on the wall were ok, but everything was so dusty. Spider webs just everywhere, not just in the corners. I guess there were more spiders around the boxes than inside (lol).
But anyway, this was something you could (and should) ignore. Although the fish were nice, it is not something I would recommend for a Valentine's visit. It's more an attraction for families with children when they're not too young (they would learn more from the information texts). And yes it's nice to just watch them but you'll enjoy it more when you learn something.
I guess I would go back, but not within the next 10 years. It should be with my children. There are a lot nicer places to visit as girlfriend-boyfriend. But it's worth the visit when one has the time.
PS: apologies for the low quality pictures, but the camera was just not made for pictures in the dark...