The low of the candle marked by the blue arrow is not broken below by any subsequent candles.  That is the first requirement for a swing low.

However, that candle did not officially become a “swing low” until  4 days later when the high of the candle marked by the blue arrow was finally surpassed by the candle marked by the red arrow (the candle put in the day after the candle marked by the blue arrow came up a couple of pennies shy of making a higher high).

There are probably dozens of swing lows (and swing highs) on this chart, however a swing low that is in the “timing band” can mark a cycle low under cycle theory (daily cycle, weekly or “intermediate cycle,” and yearly cycle depending on the time frame looked at).  In this case, the candle marked with the blue arrow constituted “a daily cycle low” for HMY.  Cycle lengths vary by security/commodity (they are measured trough to trough) and you would have to ask a cyclist how long a cycle for a particular security is.  For the same security or commodity, you could get two different answers about cycle length from two cyclists, although I think most would agree that weekly or “intermediate” cycles in gold are roughly 25 to 30 weeks long.