Grateful to a lovely group of young holiday makers who stopped on their walk to check I was OK mending a puncture caused by a two inch nail. Assured them I was OK as I confidently plugged the tubeless tyre. But they said that if I was stuck, they were staying in a cottage just along the bridleway.
Half an hour later, I admitted defeat (rim tape ripped) and walked to the cottage, where I left the bike and they gave me a lift back to my car. There are some really kind people out there.