When the tide is low, (for quite a few hours every day), you can walk right out to this lighthouse along a man-made causeway.
"The lighthouse at La Corbière is one of the most photographed landmarks in Jersey, a popular tourist site for its panoramic views, and at dusk a congregating point for many people who want to see the finest sunsets in Jersey.
It was lit on 24 April, 1874, for the first time, and was the first lighthouse in the British Isles to be built of reinforced concrete. The lighthouse was built to designs by Sir John Coode. The lighthouse tower is 19m (62ft) high and the lamp stands 36m (119ft) above high water spring tides. The beam has a reach of 18 nautical miles, and was automated in 1976.
The lighthouse is situated on a rock which is a tidal island. A causeway links the lighthouse to shore at low tide. There is an alarm to warn visitors to clear the causeway as the tide rises, however there have been casualties among the unwary or unlucky. A plaque adjacent to the causeway commemorates Peter Edwin Larbalestier, assistant keeper of the lighthouse, who was drowned on 28 May, 1946, while trying to rescue a visitor cut off by the incoming tide." (Wikipedia)
N.B. This photo has been precisely geotagged for your further enjoyment.