Staying hydrated and warm, and in easy sight of rescuers, were all factors that helped rescuers find 17-year-old William in dense bushland. newsiviewlistenLoading ABC NewsNews HomeMissing teenager William 'kept his wits' in Walhalla East bushland and saved his own lifeShareShare articleMissing teenager William 'kept his wits' in Walhalla East bushland and saved his own lifeBy Laura Mayers and Lily KristantoABC Ballarat.