The adventuresome in the Netherlands have come up with Island hopping -- on foot. When the tide in the Wadden Zee begins to ebb - they take off for the East Frisian Islands and make the 7 1/2 miles across the sea bed before the tide comes in again. The Netherlands Hikers walking with walking sticks. MS - Hikers walkers hiking through the tide out Wadden Zee. MS - A hiker walks by leaving foot prints in the wet sand. CUS - One of the hikers foot is caught in the wet sand. CUS - The sea reclaims the wet sand area and once again it is sea not sand. The hikers make it just in time.