On Montmartre district: 231 steps leading down from the "Sacré Coeur" church (easier than the Eiffel Tower !)
You can also go to the "Bois de Vincennes" (the bigger wood of Paris, east of Paris) or to the "Bois de Boulogne" (west of Paris).
Check on Paris official website :
http://www.paris.fr/portail/english/...t?page_id=8211
Regards,
Martin - le blog de l'Ardoisier -
http://21virages.free.fr/blog