Earlier this year I went on exchange for four months at the National University of Singapore. Here are my top recommendations:

Sightseeing

Gardens By The Bay

• Music/light show under the super grove trees 7:45pm and 8:45pm daily
• http://www.gardensbythebay.com.sg/en/whats-on/calendar-of-events/garden-rhapsody-light-show.html

Cloud Forest + Flower Dome

• Bundle admission is cheaper
• Student discount

Sunset at Marina Bay Sands

• Nice view watching it outside by the Helix Bridge

Shopping at The Shoppes Marina Bay

• Building has really nice architecture, but a little pricey

Nature

MacRitchie Reservoir Treetop Walk

• Warning - doing anything outside in Singapore is not really recommended since it is so hot

Food

Gudetama Cafe

NineFresh

• Several locations
• Taiwanese dessert shop

Genki Sushi

• Conveyer belt sushi
• Several locations

Sushi Goshin in Vivocity Mall

• Each sushi is $0.80!!!
• Apart from the sushi, the mall is really nice with lots of great snacks on the basement level

Koi Cafe

• Several locations
• Golden Bubble milk tea is 👌

A Noodle Story

• This place is a hawker stall
• Go early or else they’ll run out of ramen