Marmot basin is closed in summer time. It is even forbidden to go there (at least by car). I had to park my car about 1 km from the bottom station and walk from there, via a wide tarmac road.
Please note that there is really nothing to do at Marmot Basin in summer time. Only go there in summer time if you are a real ski freak (like me) and want to see every resort with your own eyes, even though it is summer!
I guess it's a lot better there in winter!
There are some excellent trails from the Upper Station of the Jasper Tramway to the top of nearby mountains, where you can enjoy phantastic views on the mountains in the surroundings.
Equipment: PLease note that usual (sport) shoes are inadequate for the rocky footpaths. Bring good hiking shoes.