Season 7

5 episodes May 10, 1981

Episodes

1 The Niagara River May 10, 1981 No ratings 2 The Tweed May 17, 1981 No ratings 3 The Yukon River May 24, 1981 No ratings 4 The Singapore River May 31, 1981 No ratings 5 The River Tamar Jun 7, 1981 No ratings