I cannot stress safety while riding a bike.
Helmets must be worn at all times even when riding down a neglected overgrown canal tow path.
In my experience of many years of cycling there are several things you must take into consideration, the weather by which I mean rain and wind.
Wind can be very dangerous especially that generated by passing high sided vehicles.
Rain is just as dangerous, not only can it blur your vision but on a down hill section can cause aquaplaning that’s why its very important to have a descent depth of tread on your tyres and inflated to the right pressures front a