Two world-class cooled conservatories and the Supertree Grove — famous for futuristic landscaping and excellent photo ops. Conservatories open ~09:00–21:00.
Large collection of Southeast Asian art housed in two national monuments — great if you want culture and air-conditioned galleries (open ~10:00–19:00).
Major Hindu shrine set in limestone caves with giant golden Murugan statue and colourful steps; best visited early to avoid heat and crowds (site open from ~06:00).