Glendurgan Garden (Cornish: Glynn Dowrgeun, meaning deep valley of otters) is a National Trust garden situated above the hamlet of Durgan on the Helford River and near Mawnan Smith, in the civil parish of Mawnan, Cornwall, England, United Kingdom. Glendurgan Garden was laid out by Alfred Fox in the 1820s and 1830s. In 1962 Glendurgan Garden was given to the National Trust by Cuthbert and Philip Fox. Sheltered valleys & coastal paths with the Helford River & Falmouth bay to look at. Playful & exotic garden at Glendurgan created by the Fox family & gardeners.