Though geographically close the two areas covered in this sea kayaking guidebook are as different in character as it is possible to conceive. The South East of England has a varied landscape of chalk cliffs, pebble beaches, vast expanses of sand, mudflats, and river estuaries. At one extreme the tidal Thames runs through the densely populated City of London and at the other the deserted North Norfolk coast. Conversely the Channel Islands are a small number of large islands and a vast number of islets and reefs. Here we are talking pink granite, white sandy beaches and very strong tidal streams. They are closer to France than to England (a mere 12km between Les Ecrehous reef and mainland France). Many of the routes here are very committing but there are also a good number of gentler paddles.