Niger
300 km (the Niger, the only major river, is navigable to Gaya
between September and March) (2005)
Nigeria
8,600 km (Niger and Benue rivers and smaller rivers and
creeks) (2005)
Norway
1,577 km (2002)
Panama
800 km (includes 82 km Panama Canal) (2005)
Papua New Guinea
10,940 km (2003)
Paraguay
3,100 km (2005)
Peru
8,808 km
note: 8,600 km of navigable tributaries of Amazon system and 208 km
of Lago Titicaca (2005)
Philippines
3,219 km (limited to vessels with draft less than 1.5 m)
(2005)
Poland
3,997 km (navigable rivers and canals) (2005)
Portugal
210 km (on Douro River from Porto) (2003)