Unknown Waters With Jeremy Wade

Jeremy Wade sets out on a fishing adventure through Iceland's river systems in search of the Atlantic salmon, an elusive fish that he has yet to catch.

Jeremy Wade explores two Kenyan lakes in search of the disappearing giant Nile perch, one of the biggest freshwater fish in the world.

Jeremy Wade searches for the elusive bull shark at the mouth of the Amazon to assess the river's health and viability as a habitat for aquatic life.