Surprisingly close to London yet completely secluded, Osea is a luxury island that provides a unique backdrop for a truly memorable experience. Hosting parties, corporate events or island takeovers, the opportunities are endless. Osea Island is located in the Blackwater Estuary, ten minutes from Witham train station. Trains go very regularly from Liverpool Street and the journey takes 40 minutes. The island is also accessible via river taxi a 20 minute helicopter ride from Central London, or a twisting pebble causeway that becomes passable for four hours during low tide, offering total privacy