Stadium MRT station is an underground (MRT) station on the Circle Line in Kallang, Singapore. Located within the Singapore Sports Hub on the eastern bank of the Kallang Basin, this station derived its name from the National Stadium. Other than the National Stadium, other facilities part of the Singapore Sports Hub, such as the Kallang Theatre and Leisure Park Kallang, are also located next to Stadium station.
The published coordinate is located near Exit A of the Station. At the posted coordinates, there is an information sign titled "From Runway to Subway". On the third column, it depicts a 1938 map of Kallang Aerodrome. Which number on the map shows Grove Road. Let this number be Y.
On the fifth column, it listed the De Havilland DH10Z Comet as the world's first commercial jetliner. What number is Z?
Then go below the stadium and look for Car Park Lot C0YZ where Y and Z are from above answers. This is the final coordinates. Read the hint and log the cache!