No.

country

rivers

1 (July 1998)

Austria

Oetz, Inn, Salzach

2 (June 2000)

Spain

3 (April-May 2002)

Dominican Republic

Jaki, Jimenoa

4 (Nov.-Dec. 2002)

Laos

Mekong

5 (July 2003)

Norway

Tora, Rauma

6 (December 2003)

Mexico

Mikos, Rio Texolo, Rio Tomato,
Rio El Salto

7 (July 2004)

Norway

Shuya, Skieli, Visa, Myrkandalselva,
Songdalselva

8 (November 2004)

Zambia

Zambezi

9 (November 2004)

Sri Lanka

Setivaka, Kotmala