The Saint Petersburg Botanical Garden, also known as the Botanic Gardens of the Komarov Botanical Institute or the Komarov Botanical Garden, is the oldest botanical garden in Russia. It consists of outdoor and indoor collections situated on Aptekarsky Island in Saint Petersburg and belongs to the Komarov Botanical Institute of the Russian Academy of Sciences. It is 18.9 ha in area, and is bordered by Aptekarsky Prospekt (main entrance), Prof. Popov Street (second entrance), as well as the embankments of the Karpovka and Bolshaya Neva rivers.