Geocaches come in seven sizes, each categorized to help geocachers know what to expect. The most common physical sizes are micro, small, regular, and large, ranging from tiny containers that hold only a logsheet to sizable boxes with room for trade items. In addition to these, there are three special size classifications: not chosen, used when the size is unspecified; other, for caches that don’t fit standard size definitions; and virtual, which applies to finds without a physical container.
For this challenge, you need to find the 7 cache sizes (micro, small, regular, large, not chosen, other, and virtual) for all 31 days of the month (for a total of 217 caches). They do not need to be in the same month. So for example you could find a micro on January 1st, then a small on March 1st, a regular on April 1st...etc. The important thing is that you have one for all 31 days of the month.
This is a Challenge cache. The cache is at the posted coordinates but you will need to qualify for the challenge before logging it.