Alviano oasis is half an hour from Walden, with more than 500 hectares of an aquatic ecosystem which permits the reproduction of about 150 species of aquatic birds.
Part of the Oasis is equipped for birdwatching.

  

ficulle - trekking - sorre torrent - parrano - lake bolsena -  s.casciano baths - marmore falls 

 san venanzo - alviano oasis  -  scarzuola - bomarzo - cetona - feasts and events