A new RSPB bird reserve and visitor centre is to have a Sunday train service from May.
The reserve at Lakenheath has been restored over 10 years
One Railway will be stopping some of its Sunday morning trains at Lakenheath station, near Lakenheath Fen reserve, on the Cambridge to Norwich line.
Late afternoon trains will enable them to return home giving visitors about five hours at the reserve.
The RSPB has spent the past 10 years restoring to open fenland the site which was previously carrot fields.
The reserve is mainly wetland, consisting of reedbeds and grazing marsh and also poplar woodland.
Marsh harriers, hobbies, bearded tits, reed and sedge warblers nest here, as well as golden orioles.