Ganymede is composed of approximately equal amounts of silicate rock and water ice. It is a fully differentiated body with an iron-rich, liquid core, and an internal ocean that may contain more water than all of Earth's oceans combined.
The geocache is at;
N 43° moooooooooon.mooooooon mooooooon moooooooon
W 79° moooooooooooooooooooooooooooooooooooooooooooooooooon.mon moooooon mooooooon
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