If you're seeking some travel inspiration, swing by Rim Visitor Center. You may be able to pick up some helpful pamphlets or brochures.
You'll be spoiled for sightseeing choice in Crater Lake. Rim Visitor Center is a great place to start here, but there are many other interesting places to appreciate. Crater Lake National Park, Crater Lake, and Cleetwood Cove Trailhead are not far from the tourist information center and will round out your day nicely.