Hello there

The landmarks are as follows
1. Sentosa Island(Underwater world, Butterfly park etc)
2. Heritage walks in the town (Google it)
3. Jurong Bird park
4. Singapore zoo with night safari.
5. Chinese garden/ Japanese garden
6. Boat Qauy ( Freak out area visit in the
evening/Night life )
7. Shopping mall- Mustafa
8. Little India
9. River cruise.

The fun of travelling to Malaysia or Thailand is by

cruise. Google cruises from Singapore.

Pls visit lonelyplanet.com for more info
Enjoy !

PS- Have Singapore sling, a mocktail at any of the club, bar.