Drop the trailer & drive out to the Polebridge Mercantile for the best sticky buns & cinnamon rolls you will ever eat. It is a 24 mile drive from the Apgar campground on a road that goes through a variety of conditions including gravel, narrow potholed, etc but a pretty drive & the Polebridge Mercantile is an interesting building even if you don't like the bakery (but you will!)
A couple of photos of the view along the drive are at 2011 trip, Day 76. More about the Polebridge Mercantile Here.
I also enjoyed just sitting at the Apgar end of Lake McDonald & enjoying the view. Enough that it is part of my signature & on my credit card...
High tea at the Prince of Wales hotel up on the Canadian side of the park. Boat rides on all the lakes. Hotel lobby visits in the grand hotels. Raft the Flathead out of West Glacier. A jammer ride for a differentview of the Sun Road.
Been a while but drive highway 2 (the road around the southern tip of the park) to the West Glacier entrance and lodge area. Lots to see on this leasurely day long drive (half day each way), historic train station lodge, and plenty of natural beauty.
If you have your passports, head up to Canada, Lake Louise is worth the drive.
West Glacier and East Glacier are significantly different. West being more the tourist town and East being more rugged and rustic.
Like a previous poster stated about Polebridge. If the resident dogs are near the door, you must walk around them, don't look for them to move. Polebridge at certain times of the year make the coldest temperature regestered on the weather reports. I believe that Polebridge is strictly operated off LP as there is no commercial power. A large genny was running the Merchantile Store. I stopped on the way up the gravel road and left about 30 lbs of air out of our dually tires. A great way to spend a day.
Pole Bridge is really "out of your way"... but oh, so worth it, for us.
Park Cafe, in St. Mary's... another wonderful experience... pie to die for but their motto is "Pie for Strength".
East Glacier Lodge is the most fantastic of the lodges (at least we thought so).
Waterton Lakes has a boat ride that takes you down to Goat Haunt and back. You can ride down, hike all day and ride back... just don't miss the last boat. There's a high, long, swinging bridge you shouldn't miss between the boat area and the hiking trail that goes between Waterton and Goat Haunt.