Why not leave your car at the Jektvik harbour and catch the ferry to the islands. Set aside one day, bring your bicycles and explore the islands of archipelago, for example Nordnesøy. Many of the islands in the county can be reached by ferry from Jektvik or Kilboghamn.
You can take a round trip tour with the local "island ferry" on certain days. The daily express boat runs from Tonnes. Many of the hotels and camping sites offer boat rentals and tours for fishing or sightseeing. You also can rent speed boats, join sail-boat trips and at not at least experience "peace of mind".