Glenklin Sculpture Park, Dumfries & Galloway
If you can't decide whether to go for a walk or visit an art gallery you could always do both and visit Glenkiln Sculpture Park near Dumfries. It was established in 1951 by Sir William Keswick who owned the land and wanted to exhibit sculpture in a natural setting. He was a friend of Henry Moore's so there are four sculptures by him plus one each by Jacob Epstein and Auguste Rodin.
There are no signs to or in the park (someone suggested this is because the statues had been vandalised in the past) so finding all the sculptures becomes a bit of a treasure hunt. 4 you can see from the road - Henry Moore's King and Queen, a Moore cross, Rodin's John the Baptist beside a small car park, then Moore's Standing Figure. The other two - Epstein's The Visitation and Moore's Two Piece Reclining Figure are further off the beaten track up a hill beside the reservoir. The setting is perfect as the sculptures look solid and rugged enough to withstand a gale, and the green of the tarnished bronze stands out against the hills. Anytime I've been it's been virtually deserted which is just as well as the road is single track with few passing places. It's a lovely place for quiet contemplation and would be ideal for a good walk or a cycle. Just make sure you take a picnic.