Distance
A foot on a giant is a pretty long distance for a normal person to walk. Giants have big feet and can travel large distances very quickly.
Compare the distance you can travel with one step compared to a giant. It's a considerable difference in distance.
きょ
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Going to Little Kyoto (きょ) is a short distance for a giant but a long distance for you.
Imagine walking the distance between where you are and the (possibly made up) Little Kyoto. Think about the distance.