Streetdirectory.com Old Thong Chai Medical Institution is located in Clarke Quay Singapore. Clarke Quay is a hotspot for Singapore nightlife, with clubs, pubs and eateries (over 200 Clark Quay Restaurants) lining the Singapore River. Some of Singapore’s largest and most popular clubs, e.g. the Ministry of Sound (MOS) are found in this district. This is a good place to watch live bands, in pubs such as The Pump Room and Brewerkz. The district is scenic; Fort Canning Hill, a World War II site, overlooks the river. The arts thrives in Clarke Quay, with MICA (Ministry of Information, Communications and the Arts) located here, as well as many quaint shop houses.