yap, i am still trying to figure out how the fuck your friend took 2 hrs to travel from marine parade to RP. since you are the one raising this real life example. is your friend a cock that got lost easily?
wahlaneh...
Republic Polytechnic is in Admiralty.
from Marine Parade can take bus to Bedok then transfer to Circle Line at Paya Lebar then North-South line at Bishan.
no need 2 hrs unless massive traffic jam lah.