The Southern Isles are presumably located somewhere near or within the region of Denmark. This is suggested in Frozen Fever, where, after Elsa accidentally sneezes into the horn and causes a huge snowball to be launched, it travels all the way to the Southern Isles, which is shown to be roughly where Denmark is located.
- In the Broadway musical, Hans describes the Southern Isles as "a very small kingdom on a very small island."
- In Conceal, Don't Feel, it is mentioned that Hans's family is relatively new to running the kingdom.
- The islands in the top has a striking resemblance to the Philippines.