Two hiking trails in Knysna's Knysna Forest, which forms part of the Garden Route National Park, recently received Green Flag status. The Perdekop Nature Walk (9.5km) and the Olifants hiking trail (8km) in Diepwalle were accredited by the Hiking Organisation of Southern Africa (HOSA) on 14 May 2015.
Green Flag Trails, which has been developed and researched by Professor Leon Hugo from the University of Tshwane over a period of 15 years, is a system that recognizes trails that meet minimum standards in terms of trail design, accommodation, facilities and service, as well as the conservation of natural resources and safety. Green Flag Trails work towards sustainable development, where the trails accredited meet strict criteria. The system is managed by an advisory body and is overseen by the Hiking Organisation of Southern Africa (HOSA).