Activities in and around Glacier are limitless. You can go for hikes and drives in and around the park, go paddle boarding on Lake Mcdonald (very chilly so maybe not swimming), go Whitewater rafting (we recommend Great Northern Raft Company), going to Polebridge for the best bake goods. You can even go cliff jumping! (call Amanda for the best places). Drive up "Going to the Sun Road" but be aware, with the 100 feet snow pack that elevation gets nearly every year, it may open later than the wedding date.
https://www.nps.gov/glac/planyourvisit/hikingthetrails.htm
https://www.nps.gov/glac/learn/news/going-to-the-sun-road-closes-october16.htm
VERY bumpy road but worth the drive for the views, hiking around Bowman Lake and Bakery! No reservation necessary.
This is the best rafting company, in my opinion. Give them a call to set up a reservation to see the river!
We have never been here, but have heard from many tourists it is a great time!
The maze is very difficult so beware! Fun place for children to spend the day!
The gondola rides in the summer, are excellent according to many folks, and they even have a zipline! https://skiwhitefish.com/scenic-lift-rides/
Rent a paddleboard or kayak and enjoy the views! (should make reservations a few days ahead of time) try to go in the morning when the water is the calmest! https://www.goglacieroutfitters.com/boats/
Montana Club - On the more high-end with excellent food! (in South Kalispell, reservations are recommended)
Nickle Charlies - Great Food! Try the Clam Chowder
Tiens Place - if you're in the mood for orange chicken and great stir fry
Laurie's Deli - has THE BEST fresh sub sandwiches
Glacier Grill - Don't really take reservations, but gets PACKED in the summer (in Coarm); great pizza.
Belton Chalet - If you're looking for a high-end, fancy meal, look no further. The meal is excellent.
2nd Street Pizza (in Whitefish) has great huge slices of pizza
In Whitefish on the main strip, every restaurant is excellent (although a little higher in price range since it's Whitefish)
Gunsight - located in Columbia Falls, you can often find live music along with great food and drinks here!
Vaqueros - located in Columbia Falls, has great Mexican food!
There are hundreds of hikes all around and in the park! They all range in difficulty so even the kids can enjoy time out in nature. Many of these can be found online or at the park entrance (they can give you a pamphlet).
https://www.nps.gov/glac/planyourvisit/hikingthetrails.htm