You’d need an oxygen mask and enough layers to contend with beyond-freezing temperatures, but could leave the sunscreen at home.
If you’re looking for a scenic lakeside destination for your summer vacation, you have two options: Earth, and a moon of Saturn called Titan.
These are the only two places in the solar system with bodies of liquid on the surface. Like Earth, Titan has an atmosphere, weather, and a natural cycle in which drops fall from puffy clouds onto the surface, before evaporating back up to start again. But the “rain” isn’t water; it’s methane, which exists as a liquid on Titan.
Scientists suspected that Titan had lakes years before they sent a spacecraft to check it out. The nature of Titan’s intriguing atmosphere suggested that it might deposit droplets to fill streams, lakes, and entire oceans. When Cassini, the now-defunct NASA spacecraft, arrived at Saturn in 2004, it turned toward Titan, the largest of the planet’s moons. The spacecraft’s radar instrument, permeating the haze, detected a very smooth surface, with narrow shapes at its edges that spread like capillaries from a vein. Another instrument absorbed the little bit of sunlight reflected from this mysterious surface and analyzed it. “It looked exactly like afternoon light reflecting off lake waters on Earth,” according to Amanda Hendrix and Charles Wohlforth, the authors of Beyond Earth: Our Path to a New Home in the Planets.