The cider/fruite trail:
Bike ride the fruit trail from Lutro-Lofthus-Hordatun 8 km total. Visit local cider/applejuice producers. Extend the tour with 2 km around the river valley Elvadalen.
Combine cycling with fjord cruise.
Bike from Lutro-Kinsarvik 7 km. Take the ferry from Kinsarvik-Utne and bicycle to Lothe(a beach) 6 km. 26 km in total.
Nice to have the children with you.