Glasgow's Botanic Gardens are not as exemplary as the Royal Botanic Gardens in Edinburgh, but they nevertheless cover some 11 hectares (28 acres). There is an extensive collection of tropical plants in Kibble Palace, the Victorian cast-iron glasshouse, which has been restored. The plant collection includes some rather acclaimed orchids and begonias. This is a good place to unwind and wander, whether through the working vegetable plot or along the banks of the River Kelvin. The Botanic Gardens are open daily from dawn to dusk. The greenhouses are open 10am to 4:45pm (until 4:15pm in the winter).