Fyllingsdalen cycling route is the absolute perfect match for a family workout. Despite 1 very large uphill climb right in the middle of the route, the rest is very family friendly, and will shift the focus from workout to family fun. Even alone, or without children, this route is a beautiful experience, surrounded by mountains and nature from all sides.
Apart from being in nature, there are some roads in the city as well, but most of them have dedicated cycling lanes. Do be careful about the roundabouts and busy traffic, especially while accompanied by children.
The route is approximately 7,7 KM long, and takes around 40 minutes.