There are some beautiful hiking and mountain biking trails throughout the Willamette National Forest. AllTrails is a great resource to search for trails!
The Willamette Valley is known for its vineyards and wineries. Check out some of the best-rated wineries and vineyards near Eugene!
Take a dip in a natural hot spring! $10/person.
There is ample fishing opportunities near the venue. Check out the link to learn more. Be advised you do need licenses to fish in Oregon. They are super easy (and cheap) to get. There is more information about this in the link provided.
There are several rafting opportunities along the Mckenzie River. Please do your research if you are interested in this activity. The link above is just one example of the tours available.
There may not be snow, but there are still fun things to do on Mt. Bachelor in the summer! ZipTour adventures, scenic chair lift rides, and disk golfing are just a few things you can do on the mountain in the summer!