On our Vancouver trip last summer we did the Grouse Grind. A gruelling 2830 steps (2.9km) with an elevation gain of 853 metres (2800 ft) up the side of Grouse Mountain. Did I mention gruelling... My husband packed my camera bag for me - at the half way mark one of our sons (who had already reached the top) came back and retrieved it from him so we could finish the gruelling (did I mention gruelling yet) hike to the top! We tackled it by climbing about 30 stairs at a time and then stopping for a breather. Even the incredibly fit are winded on this climb.
This is one of those things you put on your bucket list and check it off when it is done - and never go back LOL.
Check out the website for more info www.grousemountain.com/grousegrind