Gwynant, you're so very near, so I'll give you that one, well done
It's the Dr Johnson walk in Denbigh and you follow the Afon Ystad to Lawnt in Denbigh and then go through the grounds of Dol Hyfryd Hall where I saw the dog statues and then on to Gwaenynog Estate where Dr Samuel Johnson and Beatrix Potter used to stay.
The Crocuses are best seen at the end of Feb & early March at Dolhyfryd, Lawnt, near Denbigh. You can then see the result of 1,000 corms scattered in 1840. This is most spectacular in sunshine around mid-day
I expected DaveR to get it as he has done the walk before and posted photos of it but I suppose Dave is enjoying La Dolce Vita somewhere and Hollins who is a garden enthusiast may have known this place but is too busy shopping or enjoying the warmth in Dubai