An eight-acre woodland garden in a secluded valley about three-quarters of a mile north of Amroth, owned by the National Trust. The estate was built by the Colby family, who owned coal mines, and the gardens were mostly laid out in the early twentieth century by the Croslands. It is at its best in spring, with azaleas, camellias, magnolias, rhododendrons and bluebells, and there is a wildflower meadow and a walled garden.
There is a tearoom and a second-hand bookshop. The house itself, Colby Lodge, is not open.