Jersey has one of the largest tidal ranges in the world, the tides around the South-East coast are particularly dangerous and care should be taken to ensure you are properly prepared before exploring this area. During certain periods the tide can retreat over 2 miles from the shoreline.
The topography of this area consists of rock outcrops, sandbanks and gullies. On an incoming tide the gullies will quickly fill with water and can leave you cut off by the tide. Those exploring this area should ideally have, or be with someone with local knowledge and must take into consideration the tide times.
You can check the tide times here:
For more information on Sea Safety in Jersey click here