The centuries-old tree holding on in the shade

On the slope that never gets direct sun, a centuries-old yew survives: a species that has no business growing here, stranded since a time when this climate was a different one. Around it, a few protected hectares of mixed woodland and springs that only run for part of the year. You get there on a forest track, there is not a single tourist sign, and it is probably the least-visited corner on this entire list. Unlock where it is, how to reach it, and the months when the water actually runs.