Competition closed! But if you fancy going in and cleaning up the countryside, it’s still a ripping ride.
Last month we rode with venerable trail builder Dafydd David around Coed-y-Brenin in Snowdonia. We cunningly hid the bottle somewhere in this square:
764247 on 1:50,000 sheet 124
If you’re the happy finder of the clue, just email in the codeword to email@example.com. Best of luck.