Go to Hougang Ctrl Int or Jurong East Int, take 51 full trip,
wait for DD if you kena SD, 51 Singapore's longest route, go upper
deck, journey 2 hours ++. You can have the AC for very cheap
fare.
Waste time ok, I'm not a bus fanatic like you. In bus hard to
study also hahaha... Heck! I still on the air-con when i study
only. If not cant concentrate.