My lady & I drifting towards the west coast. Had never heard of El Malpais before but we both like to hike so we thought we would stop in. Beautiful area...we hiked in the El Calderone area and for most of the time we were completely on our own. Caves, volcanic rock, cinder cones, trees, silence, birds. Magnificent way to spend a couple of hours. We were both amazed that there is no entrance fee for a National Monument - truly your tax dollars at work in a good way.