Karaca Arboretum (Botanical Garden) Karaca Arboretum is 5 kilometers away from the city center on Yalova-Terman road. Karaca Arboretum was established by Hayrettin Karaca in 1980, and spans 13.5 hectares of garden space today. The arboretum is a landscaping collection that includes 7000 different plant species and varieties. Karaca Arboretum is a privately owned arboretum in Turkey. The arboretum boasts various plant species and cultures from around the world, including Acer, Plums, Magnolias, Oaks and Pines. Visitors can visit the arboretum between 1-6 on Sundays when it's open to public viewing. In addition, the arboretum is open to visits by groups and schools on other days with a reservation. The tour takes about 1.5 hours with a guide. Tours are done by donating money to TEMA Foundation at the end of the tour with receipt. Karaca Arboretum is visited by at least 15,000 domestic and foreign visitors every year Another local activity is to provide plant materials to other Arboretums and Botanic gardens in various locations of Turkey. One international effort from the same department is to make seed exchanges with other Arboretums and Botanic gardens in several locations of the world, continue expanding its plant collection, establish new gardens inside the Arboretum’s area. The Karaca Arboretum was bestowed an award by the International Dendrology Society in 2004 and this award was presented to Mr. Hayrettin KARACA in 27 June 2004 through a ceremony organized in Karaca Arboretum by the Director of the International Dendrology Society .