JAPON - IMPORTANTE NARITA! - Comprar DAY PASS METRO TOKIO

Tokyo Metro fares range from 

160 to 300 yen depending on distance. 

one day pass for unlimited use of Tokyo Metro 710 yen, 

but note that special passes for visitors are sold at Narita Airport for only 600 yen for a 1-day version and 980 yen for a 2-day version.