Back to Sid's filmography: This film was a joint project between Sid Perou and Lindsay Dodd, who shared the whole of the production between them - including the accompanying music. It is a wonderful cinematographic essay on the role of water in a karst landscape, without any intrusive commentary. It was funded by Yorkshire Arts in 1978, and was broadcast by the BBC in 1984. It won a number of prestigious awards including the Grand Prix at the 1981 Festival International du Film de Spéléologie at La Chapelle-en-Vercors, the Grand Jury Prize and the Public Prize at the Festival Internacional de Cinema Espeleològic in Barcelona, the Silver Gentian Prize at the 30th International Film Festival in Trento in 1982, and the 1981 Chicago International Film Festival Documentary award.