The location is at Marina Bay Street Circuit, a no ordinary place for Formula 1 races but also a 799,000 sqm tourist attraction site with bright lights surrounded of historical landmarks. Also, in history, this is the first street circuit in Asia for F1 races. This racetrack has FIA grade 1 license too(Fédération Internationale de l'Automobile).
World-class performances from their musical guests are expected and it's going to be a hell of a party! Fine dinings in the area and awesome attractions, food delights and a whole lot of other restaurants to choose and eat from.
Visitors and guests can go to Amber Lounge, it's one of Singapore's nightlife locations and does closing or after parties for Formula 1 teams.
Don't miss it on September 14-16! Check out the event guide for more details; http://singaporegp.sg/eventguide
Read these articles related to this event too;
https://racer.com/2018/06/21/singapore-grand-prix-the-light-fantastic/
Source(s):
http://singaporegp.sg/
https://en.wikipedia.org/wiki/Marina_Bay_Street_Circuit
https://en.wikipedia.org/wiki/Singapore_Grand_Prix