We worked there for 5 summers and it's our favorite place. Not as big a YNP but still big. Do you hike. Don't miss doing the going to the son highway several times using the free shuttles(parking areas very crowded) that let you out at multiple places. Get out at Logan Pass and hike even a short ways in either direction; spectacular. The many glacier area is a must but just about any place you can get to, you can't miss. Invest in bear spray if you hike any as we encountered 2 large grizzly minutes from Logan Pass parking lot. No problem but you never know. You could see a lot in 3 days but 5 to 7 would be better. We like Apgar campground in the Park but no hook-ups and some sites are iffy for your rig. Always been able to get in mid-morning.