NPS
Don't let this happen to you! Plan ahead and bring the right equipment and gear for your travels.
Touring El Malpais does require some preparation. Bring the right vehicle; if you plan on exploring the more remote sections of the park, a properly equipped four-wheel-drive vehicle with high clearance is suggested.
Your safety is your responsibility here as well. Given the long distances and difficult terrain, it can be a while before help can reach you. you'll need to have an enjoyable and safe trek.