In 2008 Cetacea Lab installed a hydrophone just off of the Wall Islets, two small islands located south of Gil Island. Shortly thereafter it was apparent from the amount of acoustic activity we were detecting, that the Wall Islets were perfectly placed on the edge of an orca highway and a hot-spot for humpback whale bubble-net feeding. This prompted us to build "The Wall", an out-camp from which we can observe this whale activity from land, all throughout the summer months.