It is just something that you shouldn't be able to do. I couldn't even explain quite what it means to my kids, but I landed below sea level today. After searching around for a new place to go, I ran across Furnace Creek, CA, which is in the heart of Death Valley. Cactus Aviation recently had a fly-in there, but I was unable to attend. So, I decided to take two of my kids there, Natali and Noah, for a short trip.
It is pretty much a direct shot from Henderson (HND) to Furnace Creek (L06). When I took off, though, from Henderson there was skydiving in progress over Jean (0L7) airport, so ATC vectored me to the east before allowing me to continue on course. The trip offered alot of interesting scenery to look at, including Mount Potosi, Sandy Valley and Pahrump. The most spectacular thing, though was to come over the mountain ridges and descend quickly down into Death Valley. 
From the ground it is really hard to take in how dramatic the changes are in that area. The Panamint Range boarders on the west side of Death Valley, and the peak is 11,049ft and Mount Whitney, which is the highest peak in the US at 14,505ft. Death Valley's lowest point is -282ft, and has a record temperature of 134 degrees F. All of this becomes visible as you crest over the eastern ridges and start a rapid decent. I had to drop down relatively quick to get down from 8,500ft in the valley. The runway was in very good condition and the airport was really quiet. The most suprising thing, though, was how fast a shuttle came out to get us to take us into town. I called on my phone and within 5 minutes we were picked up and off into the Ranch. My kids enjoyed walking around the general store and eating some treats before we had to head back. 
From the ground it is really hard to take in how dramatic the changes are in that area. The Panamint Range boarders on the west side of Death Valley, and the peak is 11,049ft and Mount Whitney, which is the highest peak in the US at 14,505ft. Death Valley's lowest point is -282ft, and has a record temperature of 134 degrees F. All of this becomes visible as you crest over the eastern ridges and start a rapid decent. I had to drop down relatively quick to get down from 8,500ft in the valley. The runway was in very good condition and the airport was really quiet. The most suprising thing, though, was how fast a shuttle came out to get us to take us into town. I called on my phone and within 5 minutes we were picked up and off into the Ranch. My kids enjoyed walking around the general store and eating some treats before we had to head back. 
I would recommend this trip out to Furnace Creek to anyone (as long as they go before summer). It was just around a 1hr flight and well worth every second of it.