The geologic difference that can be stated between St. John / St. Thomas and St. Croix is ; St. Croix is very quiet island, while St. Thomas can be regarded as a busier and more and is that commercialized.
However, they posses beaches, watersports, landmarks as well as great vantage points.
This are the differences that can be associated with the history of the earth, this can be on rocks or geographical location.
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