When you just don't have enough energy to make it back up to the upper city from the lower, at the end of Petit Champlain is this Funicular to get you up there for $1.5 Canadian. Definitely give it a try for at least one trip for the great views

This is the easiest way to go between the Lower and Upper Towns. It goes from la Place des Armes (near the Terrasse Dufferin) in the Upper Town and the Louis Jolliet House at le Quartier du Petit Champlain in the Lower Town.

Address:
16, Petit-Champlain
Québec G1K 4H4

It dates back to 1879, created by William Griffith. In 1907, Alexander Cummings electrified it. It costs $1.75 per person... plus

When you have been touring the river side streets of the Old Town do not consider walking the steep staircase up the cliff face to Chateau Frontenac for that refreshing beer or coffee. It is a very tough climb amd you would be better to walk down the steps and then pay the $1.75 to ride the funicular rail to the top and enjoy the view.