#SharkWeek http://www.discoverygo.com Shark experts Jeff Kurr and Andy Casagrande are in a small boat surrounded by giant great whites in this heart-pounding scene from Lair of the Mega Shark. Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Join us on Facebook: https://www.facebook.com/sharkweek https://www.facebook.com/Discovery Follow on Twitter: https://twitter.com/SharkWeek https://twitter.com/Discovery