There are a lot of attractions within walking distance to Grand Park City Hall, which is located in the heart of the Civic District. For art galleries or museums, we recommend National Gallery Singapore, Asian Civilisations Museum or Peranakan Museum. For shopping and entertainment, Funan Mall, Raffles City Mall are nearby, as well as Clarke Quay and Boat Quay nightlife districts.
Just a short drive away is the iconic Marina Bay area where Merlion Park & Gardens By The Bay are located.
See here for more recommendations.