There is a warning siren that sounds when the causeway is about to cover. If you hear the siren, you should immediately make your way back from the lighthouse via the causeway, as the tide will cover the causeway imminently. In an Emergency, dial 999 and ask for the Coastguard.
Tides and Causeway Calculator
Before you use the causeway, please check the tide times. There is a causeway access calculator that gives information on when the causeway at Corbiere, and other locations around the island, will be accessible.
Click here to use Tide and Causeway calculator
For more information on Sea Safety in Jersey click here