Bayfront MRT Station (CE1/DT16) is an underground Mass Rapid Transit interchange station in Downtown Core, Singapore, next to the Marina Bay. The station connects the Circle Line and Downtown Line via a cross-platform interchange, making it the only MRT station in Singapore to provide cross-platform interchange between two MRT lines operated by two different operators. Serving mainly the Marina Bay Sands hotel and casino, an underground walkway also provides visitors with a convenient passage to Gardens by the Bay.
Your GPSr is jumpy in this area. I have provided a SPOILER photo to assist. If you are coming by MRT, take Exit E at Bayfront Station.