The cache container is located at the listed coordinates. To log as found, sign the logsheet in the cache and satisfy the challenge requirements.
Since September 2020, there are 68 positive cache attributes available (which does not include Partnership Cache or Lost And Found Tour) and 41 negative cache attributes. To qualify for this challenge, you need to have found all 68 of those positive attributes and all 41 of those negative attributes, for a total of 109! Each cache can only be used for one attribute.
Here's a checker to help you see if you qualify.
