Lake Maggiore is most known thanks to the Borromeo islands, which you can find on the lake side of Stresa.
Isola Bella is famous for the Barroque palace and the beautiful terraced gardens, Isola Madre is the biggest of the three and known by her rich botanical garden with azaleas, rhododendrons, camellias and ancient trees.
Isola Pescatori an ancient village still inhabited. www.isoleborromee.it
At Verbania(20 Km from Cannobio) you can find the famous botanical garden of Villa Taranto full of different types of plants and flowers also rare. www.villataranto.it