bukit timah nature reserve

bukit batok nature park tropical rainforest singapore canopy landscape aerial view woods woodland jungle asia former quarry rubber plantation natural habitat heritage granite hill trees dense forested land ridge conservation plants thick growth primary secondary mixed crowns scenery layers structures radio television satellite station tower peak summit hilltop modified equatorical protected national continuous greenery evergreen space sky foliage buffer zone biodiversity sanctuary place attraction vegetation biome recovering rejuvenating timah reserve has slope lush