Highgrove is the country home of Charles, Prince of Wales, and his wife Camilla, the duchess of Cornwall, and is located in Gloucestershire. The gardens include a wild garden, a formal garden and a walled kitchen garden that reflect Prince Charles’s interests in organic and sustainable principles. Among the highlights are the national collection of beech trees and large-leaved hostas, and a wildflower meadow with more than 30 varieties of native plants. The garden tour is a walk of about 2 miles that lasts about two hours. Garden paths are bumpy and uneven and visitors, especially those with walking difficulties, are advised to wear stout shoes or boots and suitable clothing as the tours continue even if it rains. The tour season for the gardens ends on Oct. 18. Advance booking is required.