Leave Killearn via Gartness Road, staying on the road till you see the signs for the National Cycle Network. Where you then follow the signs for Balloch. Through the Balloch Park, via the Loch Lomond Shores visitor centre, then onto the cycle path taking you up to Luss. Enjoy something to eat and drink before retracing your steps.
Distance from Killearn to Luss is around 20 miles.
315 feet (Altitude from 30 feet to 344 feet)
Total climb: 630 feet
Total descent: 935 feet
Full route map can be found at www.cyclestreets.net/journey/987742/.