As one who regularly enjoyed these places I remember only too well trying to hug whatever shade was available when strolling in the tropical sun.
For the most part the signage to these buildings and heritage sites is very good. However there are some parts that are not shown so well on the map and unless you are a 'local' are difficult to navigate - the shortest route between two points of interest in such a climate is usually the best.
Imagine how unpleasant it must have been to work on the Singapore River in times gone by. This photo from the reign of George VI shows how congested it used to be. No urban walkways and very few green spaces.
|The Singapore River - in the reign of George VI (1937-1952)|