Honestly, you can't go wrong. Whether it's a walk along the Yampa River or hike up to Fish Creek Falls - bring lots of water and download the AllTrails app for maps!
You can't visit Steamboat and not get a milkshake from Johnny B. Good's Diner! Besame has great tapas, Salt and Lime has killer queso, and Primrose has a phenomenal burger!
If you're looking for some mountain roller coaster, trampolines, bowling, fly-fishing, mountain biking, rock climbing check out the mountain resort website or any of the local outdoor outfitters
If you've been wondering why the town smells like rotten eggs - you're surrounded by sulfur hot springs! Be warned - these ones are clothing optional at night!
If you really want to get the full Steamboat experience, you can go to the Rodeo Friday night! There's another one on Saturday but you're busy that night :)