On learning that there are a lot of bridlepaths near Box Hill, we decided to go and explore them this weekend.
On a road bike.
With road tyres.
On a frame that has a three-inch toe-overlap.
Fixed.
With a 65" gear.
That was fun! Fortunately, some bits were so muddy that I was able to slither down with my legs locked and the back wheel either sliding in the mud, or not on the ground at all. I only fell off once!
Think I need a more appropriate bike the next time I go that way.