Nigel Marven's Shark Island sees Nigel travel to a small island of the coast od the island of Costa Rica to explore the marine life living in the waters.
Nigel risks the ocean currents to swim with silky sharks off-shore. He also works out why there are more sharks in this part of the word than anywhere else.
Classification: Documentary Genre: Family Status: New Series Network: five ( United Kingdom) Airs: Mondays, Tuesdays, Wednesdays, Thursdays, Fridays at 07:15 pm Runtime: 45 Minutes Premiere: October 15, 2007