After many years we went back to Neeltje Jans which used to be the most informative place about the Dutch Delta Plan.
There is still a lot to see about the construction of the many dams and sluices of Zealand, but unfortunately it is becoming an amusement park with animal shows. In my opinion it is no more worth the entrance fee for those who come for the technical part of it (which was the beginning of this attraction).
In the entrance fee there is a boat roundtrip included. In earlier times you could see seals on the sand banks on the tour. The boat does no more pass there.