In this brandnew threepart series for I TV版, adventurer Bear Grylls heads out on an epic journey of discovery across England, Scotland and Wales to experience the British Isles at their most spectacularhttp//wwwi TV版com/presscentre/ep1week38/britainsbiggestadventuresbeargryllshttp//wwwi TV版com/presscentre/ep2week39/britainsbiggestadventuresbeargryllshttp//wwwi TV版com/presscentre/ep3week40/britainsbiggestadventuresbeargrylls
