Nat Geo WILD Extends SharkFest to Two-Week Run Kristin Brzoznowski June 13, 2018 Top Stories Nat Geo WILD’s SharkFest is returning this summer for an extended two-week run of shark-themed programming. The content you are trying to access is only available to members. Log In Register Nat Geo WILD SharkFest 2018-06-13 Kristin Brzoznowski Share