Although the train service is the only daily public transport, there is also a shoppers’ bus to High Barnet for a few hours on weekdays and Saturdays which offers a hail-and-ride service within Hadley Wood. For cyclists, the Great North Cycleway starts at Hadley Wood Station, and cycle racks were installed at the station in 2016.
The Shoppers’ Bus – Route 399 http://www.londonbusroutes.net/times/399.htm
The Great North Cycleway runs north through countryside from Hadley Wood to the Hertfordshire/Bedfordshire border using quiet lanes and traffic free sections - a 32 mile ride. As its website notes, you may not want to cycle all of the route, but why not ride part of it, or even cycle one way and take the train back. https://www.sustrans.org.uk/ncn/map/route/great-north-way
The Shoppers’ Bus – Route 399 http://www.londonbusroutes.net/times/399.htm
The Great North Cycleway runs north through countryside from Hadley Wood to the Hertfordshire/Bedfordshire border using quiet lanes and traffic free sections - a 32 mile ride. As its website notes, you may not want to cycle all of the route, but why not ride part of it, or even cycle one way and take the train back. https://www.sustrans.org.uk/ncn/map/route/great-north-way