gibbon island ...
in a wire mesh exhibit that is too small for them. its a nice exhibit, just doesn't allow them as much swinging room as they deserve. the old siamang island has tall matured trees and plenty of space and is sitting empty at the present.
actually, there is so much space freed up at the moment that if melbourne moved the langurs and white-cheeks to the islands in the asia section, put the ruffed lemurs next door to the ring-tails in th old siamang island and moved the colobus, lion-tailed macaques and spider monkeys to the old orangutan grottoes - they could demolish the treetop monkeys and apes exhibit!