The Reserve of the S. Antonio Valleys can be reached from Aprica by descending towards Edolo; at Campagnola spot head towards the small hamlet of S. Antonio. A fascinating visitor's centre and the Alpine Hydrobiology Station welcome excursionists on their way to the Brandet or Campovecchio Valleys.
Water is a characterising element of this Site of Community Importance; here streams flow into bubbling waterfalls and clear emerald streams are home to very special fish populations. The presence of the European bullhead (Cottus gobio) is especially worthy of mention.