Head out of the city and check out the extinct volcanoes in Petroglyph National Monument. This ride is really easy, but there are a few rocky/sandy spots that bump it up to a 2 difficulty level. You'll find some fairly challenging climbs on this route, with the rocks and sand making it a bit more of a slog. Take plenty of water in the summer, as this entire route is very exposed. Also, consider bringing a patch kit, as there are goat heads galore. These volcanoes are a must see and this is a great way to see all 5!