Constantia is a wine-producing suburb of Cape Town, South Africa. The Constantia Wine Route links the many wineries dotting the Constantia Valley. Housed in a 17th-century wine estate, Groot Constantia Homestead and Wine Museum includes a manor house with 18th- and 19th-century furnishings, plus collections of drinking vessels and carriages. The Constantia Greenbelt network includes the tree-lined Alphen Trail.