The National Orchid Garden, situated in the middle of the Botanic Gardens is world renown. Singapore has been breeding orchid species for about a hundred years and, in more recent years, has been at the forefront of using cloning techniques such as meristem culture to produce large numbers of specific varieties. (Most of the orchids purchased in the supermarkets of the West probably originated in Singapore, even if nominally grown elsewhere.) The National Orchid Garden is therefore spectacular; well worth the entrance charge (which is an absolute bargain for we ancients,) and well worth a couple of hours slow mooch around.
Not to be missed under any circumstances is the Sembcorp cool house. Apart from being a welcome retreat from the heat and humidity outside, the varieties (and they way they are displayed,) are breath-taking.
One would have to be a real misery to come away disappointed!