Bodnant Gardens
Bodnant gardens is another National Trust property in North Wales, and was a hidden gem. There's so much to explore and a description probably won't do it justice.
The gardens are absolutely breathtaking and well maintained. There are a huge collection of plants and flowers here, and from what I gather the collection was deliberately built up over the years by gathering species from all around the world. The place is truly magnificent and well worth a visit if you enjoy walks through green spaces.