Natural World - Season 13 - Eps 11: The Riddle of the Sands
Documentary on the wildlife found through the four seasons in the estuary of the River Ythan in north-east Scotland, a five-mile stretch of marshes, mud flats and sand banks situated some ten miles north of Aberdeen. The waters of the estuary are home to waders, wildfowl, shellfish, small crustaceans, fish and otters. The estuary is a nature reserve and, since the 1950s, the University of Aberdeen has been running a research project to examine its complex ecosystem.
About Natural World

Title: Natural World
First Air Date: 1983-10-30
Last Air Date: 2020-03-20
Status: Returning Series
Rating: 7.1/10 (from 25 votes)
Language: EN
Seasons: 40
Total Episodes: 543
Network: BBC Two
Genres: Documentary
Production Companies: BBC Studios, BBC Studios Natural History Unit, BBC
Synopsis
Natural World is a nature documentary television series broadcast annually on BBC Two and regarded by the BBC as its flagship natural history brand. It is currently the longest-running series in its genre on British television, with more than 400 episodes broadcast since its inception in 1983. Natural World is produced by the BBC Natural History Unit in Bristol, but individual programmes can be in-house productions, collaborative productions with other broadcasters or films made and distributed by independent production companies and purchased by the BBC. Natural World programmes are often broadcast as PBS Nature episodes in the USA. Since 2008, most Natural World programmes have been shot and broadcast in high definition.
Cast

David Attenborough
Self - Host

John Hannah
Narrator (voice)

Juliet Stevenson
Narrator (voice)