Titan: Lounging by the Lake, Dancing in the Methane Rain  With
all those lakes, Titan practically has England's Lake District
beat as a vacation destination.  Image courtesy NASA/JPL/SSI
With its lakes, riverbeds and deltas, Saturn's largest moon
appears familiar at first, but think twice before taking a dip
in the hydrocarbon lakes or catching its methane raindrops on
your tongue. Even the ice volcanoes (cryovolcanoes), like
5,000-foot- (1,500-meter-) high Sotra Patera, erupt with frozen
water and ammonia (or maybe asphalt) instead of lava [sources:
Lovett; NASA].  Still, Titan is the only known spot in the solar
system (besides Earth) that features surface lakes, and for
scenery you can hardly beat the Lake Michigan-sized Ontario
Lacus nestled in its surrounding hills of water ice. Sit on a
frigid beach (temperatures average minus 290 F (minus 179 C))
and enjoy the unusually tall, notably leisurely waves rolling
in, a side effect of Titan's low gravity [sources: Ghafoor et
al.; NASA].  Titan also stands ou