We highly recommend stopping a the Four Corners School of Outdoor Education’s Canyon Country Discovery Center. The center is located just north of Monticello, Utah. They have a campus set up with exhibits and learning stations that your kids will enjoy. Schedule tours that can include multi-day trips, River Runs, or just hikes with knowledgeable guides. Tours can be .5 days or the whole weekends. Picnic pavilions are available for public use. Check their calendar for upcoming events. They support educational programs and do a lot of good outreach to local schools.