Lewis and Clark Caverns is Montana's first state park and showcases one of the most highly decorated limestone caverns in the Northwest. Guided cave tours run May through September, and the 3,015-acre park also has hiking and biking trails, fishing, and wildlife viewing. Three tours are offered: the Classic, the Paradise, and the Candlelight. Adult tickets are $15 for the Classic and Paradise tours and $25 for Candlelight, with reduced rates for youth and seniors. A visitor center, interpretive programs, and historical displays tie the park to the Lewis and Clark expedition. Camping is available for $4 to $34 per night depending on season and amenities. Cave tour reservations can be made at 1-855-922-6768.