After you put the miles in!
Tippet Rise is a large scale outdoor sculpture exhibit in the foothills of the Beartooth Mountains and will include some hiking. Limit to 70 - will include transportation and snacks.
On the Stillwater river, life jackets are provided, fantastic guides take you on the Lower Stillwater. Shuttle ride to put in on the river is a few minutes down the road (about 2-3 hour total trip). Both excursions are quite fantastic. Sign up for both on the registration pages.