The park also houses a number of animals, including deer and an aviary. There is also a walled garden with a sundial in the middle, and a large glasshouse which contains tropical plants. Doonfoot extends westwards from the River Doon to the ruin of Greenan Castle, overlooking the coast. The island of Arran is clearly visible across the Firth of Clyde from many points throughout Doonfoot. The beach at Doonfoot is popular in summer but, like many beaches along the Ayrshire coast, has failed to meet European Union standards for cleanliness under the Blue Flag scheme.