The Sunken Gardens are located in Westbrook between the Royal Esplanade and Westbrook Promenade on the seafront. Created in 1932 the gardens had been the target of vandals and suffering from rather unkempt stonework until the Sunken Garden Society (SGS) volunteers began their mission to raise funds and carry out work to revive the site. Plans include restoring the path network to allow access for wheelchair users, extensive shrub restoration, new plants and the recommissioning of the the water hydrants and restoration of the stonework.
TUF’s involvement has been in planting trees and shrubs to enhance the gardens. Given the nature of the site, all plantings need to be do well in the sea air.
TUF’s Sunken Garden Trees
| Common Name | Scientific Name | Cultivar |
| Common Hawthorn | Crataegus monogyna | |
| Midland Hawthorn | Crataegus laevigata | |
| Hybrid Cockspurthorn (H) | Crataegus x lavalleei | Carrierei |
| Loquat | Eriobotrya Japonica | |
| Monkey Puzzle | Araucaria araucana | |
| Rowan | Sorbus aucuparia | Edulis |
| Scots Pine | Pinus sylvestris | |
| Tamerisk | Tamarix |