Hong Lim Park, formerly Hong Lim Green and Dunman's Green, is a 0.94-hectare heritage park in Singapore that is "the only venue in Singapore where public protests are allowed", next to Clarke Quay MRT station.
Wikipedia https://en.wikipedia.org/wiki/Hong_Lim_Park
Address 20 Upper Pickering Street, Tanjong Pagar 058284, Singapore
Coordinates 1°17'10.917" N 103°50'47.892" E