Thanks for the inspiration.
I like this one very much. The man in the foreground is looking image left which brings the left side of the tunnel into consideration. The rest of the people are looking image right, where most of the interest is located. Nice balance!
Far too often, when shooting in a venue like this, photographers are simply concerned with images of the sea creatures while the most important aspect (at least IMO) is the interaction of the visitors with the surroundings...
Am jealous, Manfred. I have never been able to get any worthwhile image at Kelly Tarlton's in Auckland. By the way, these places are all copied from the brainchild of Kelly Tarlton in Auckland, a diver, which was the very first. It is very sad, that as I recall, he died about a week before the Auckland one opened.