The Oregon Caves are really worth the drive. The walk through the cave is fascinating, and the guilds are educational. We went on both the regular tour and the “candlelight” tour. If you have time, I suggest both, since they give very different perspectives. The tour is about 1 hour long and there are a lot of stairs, so some people may not be up for it. Bring a jacket because the caves can be very cool even in the middle of summer.