El Malpais has several hiking trails, including the above-mentioned Zuni-Acoma Trail. Most are marked with rock cairns; some are dirt trails. The best times to hike this area are during spring and fall, when it's not too hot. You're pretty much on your own when you explore this area, so prepare accordingly. Carry plenty of water with you; do not drink surface water. Carrying first-aid gear is always a good idea; the lava rocks can be extremely sharp and inflict nasty cuts. Never go into a cave alone. The park service advises wearing hard hats, boots, protective clothing, and gloves, and carrying three sources of light when entering lava tubes. The weather can change suddenly, so be prepared; if lightning is around, move off the lava as quickly as possible.
Primitive camping is allowed in the park, but you must first obtain a free backcountry permit from the visitor center.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.