How to get to Notre Dame from CDG Paris by RER

I took the train RER Blue line from CDG Paris to St.Michael to visit Notre Dame and Eiffel Tower. The cost of the train fare is Euro 10.30 one way and is the fastest way to Downtown Paris from the Airport it takes around 40 minutes The terminal to the train is found close to Terminal 2A and you can see signs leading to the train station and is to your right as you come down the escalator. Visit my website www.chungathvideos.com Instagram @chungathvideos