Westonbirt: Enchanted Christmas

At Westonbirt in Gloucestershire, the lighting is designed to work with the arboretum's remarkable tree collection rather than compete with it, so you walk beneath glowing canopies and past individually lit specimen trees along a roughly one-mile route that takes about an hour. It feels more intimate and natural than the big palace and botanic-garden trails, which is exactly its appeal, and it tends to be gentler on the wallet. Marshmallow toasting, festive food and a genuinely woodland atmosphere make it a lovely lower-key evening, and it is a good pick if the biggest trails feel too crowded or expensive. Run by Forestry England as part of its wider programme of Christmas events, so organisation and quality are reliable.