A lot of valuable nature is found on the Tata Steel site in IJmuiden
The biotopes at the steel site includes wet dune valleys, herbaceous grasslands and over 100 years old forest.
Special species that accur are the sand lizard, natterjack load, nightingale, the grasshopper warbler, the argus butterfly and rare orchids such as dogworf and swamp wasporchis.
The site, in particular the lagoons, are situated on former intertidal land at the head of the River Dee Estuary.
The lagoons provide habitat for a number of breeding bird species.
A watch-tower and a bird hide allows Tata Steel to work with local schools.
Tata Steel provides ongoing assistance with the maintenance of the islands and reedbeds. This involves suppressing vegetation, as terns prefer to nest on bare, stony ground.