Lighthouse Durgerdam (Hoek van 't IJ) in April 2005. Unfortunately it stands in middle of a bird reservation and private area and
thats why no better picture was feasible.
(works since 1893,
height of building 19.5 m, height of fire 18 m,
range of light white 14 sm - red 11 sm,
characteristic [Oc WR 5s] one occultation every five seconds)