The Biggest Great White Ever Filmed | Island of the Mega Shark

At over 20 feet long, this massive female great white shark is likely the largest ever filmed - and one of the largest ever seen! From Shark Week 2015's "Island of the Mega Shark". Want more Shark Week? Subscribe here: http://bit.ly/2daokw6 About Discovery Channel: Discovery Channel brings you the best of real-world entertainment that is both visceral and experiential. We make you lean forward, as you journey with us across the globe, with compelling stories and engaging characters. Facebook:   / discoveryseasia   Instagram:   / discovery_seasia   Twitter:   / discoveryseasia