I think the tour bus is worth the money even though you can't go all the way because of the Avalanche I guess. The tour bus includes a lot of information and they drivers usually point out wildlife and other interesting facts that you won't get on your own. My wife and I stayed there a few years ago and at the many Glacier Lodge and had an absolutely wonderful time because of the Ranger talks the the old hotel that was the the boat ride that we took from one Lake to another got to see a grizzly bear and her Cubs. Definitely wouldn't miss out on The Lodge at many Glacier Lodge cuz it's so far out of the way that you get to see things that you wouldn't get to see normally but enjoy it you win it's going to the Going-to-the-Sun Road is definitely something to see best best wishes.
Going to the Sun is open up to Avalanche. That is a great hike for first time visitors to the park. I would start there.
There is an informational building when you enter the park. Make sure you get a map it's easy to read. I believe there is an entrance fee in the park. There's also a tour bus that you can go on but we just used our own vehicle. There are camping grounds there but it might be all reserve. There is a shop there super cute lots of goodies higher recommend to check that out. I hope this help.
Thanks! Your answer is awaiting moderation.