Birds of Eden is the world’s largest free-flight aviary and bird sanctuary, located in Kurland village near Plettenberg Bay in the Western Cape, South Africa. The mesh dome of the sanctuary was built over 2.3 hectares of indigenous forest and is up to 55 meters above ground level. 1.2 kilometers of walkways, about 75% of which are elevated, let visitors see the birds at all levels of the aviary.
The 2.3-hectare enclosure is covered by 3.2 hectares of wire mesh resting on cables strung between 28 masts. The masts vary in length between 2 and 34 meters and at its highest point, the mesh is 55 meters above the ground. The total weight of the wire mesh is about 80 tonnes, and it encloses a total volume of 375,372 cubic meters. In 2014 the sanctuary was home to about 3500 birds representing more than 200 species.
Birds of Eden is one of the four Sanctuaries under The South African Animal Sanctuary Alliance (SAASA). As a member of SAASA, Birds of Eden was honored with four major tourism awards in 2014.
Visitors can access the aviary through about 1.2 kilometers of walkways, about 75% of which are elevated to let them see the birds in all areas of the aviary. Visitors can tour the facility on their own, or take a guided tour.
According to Wikipedia