Argo - Galileo88/Galileos-Planet-Pack GitHub Wiki
Among the 29 worlds the one moon of the planet Hox really stands out. As an ice moon resource scans will reveal an overwhelming abundance of water and certain other resources here (though there is no actual ocean to interact with), and a great scarcity of other resources, and its inclination is second to none. With slightly less than Minmus gravity and nearly its (lackluster) size it is quite safe for an EVA kerbal to launch into or out of orbit. Excluding Lili, Argo counted as the second-smallest moon in Galileo's Planet Pack until release 1.5.0, which introduced the Nereids Agrippina and Julia
Argo's geysers, thanks to some tidal action with its parent, are Water so it's quite okay to shower in them. Unfortunately, there is no atmosphere to allow for breathing in the showers or immediately cleaning one's skin so forget about swimsuits and rubber dukkies.
Cryovolcanism is implemented as a visual feature in GPP_Clouds and boasts no physical effect on a ship or kerbal. The rocks, however, are indeed solid.