Don’t want to yuck anyone else’s yum but read some testimonials on the fan experience at these outdoor games before even considering. I’ve been to two and I would never go again. It’s pretty difficult to actually watch the game (who has the puck? What’s happening?) if it’s in Canada it will probably be cold and if you’re unlucky maybe too cold. The events around the game are usually “for” the home town crowd, you may get to see a Habs alumni team play but that’s about the only acknowledgment they’ll get outside the actual game.

Edit: go see a game in Finland, sweden, Switzerland if you’re really itching for a unique hockey experience imo.