Turns out the original cache owner/hider who lives in Germany came back to Anchorage and "found" the cache "again" on July 18, 2019.
The area is near hotels and along the perimeter of the Lake Spenard float plane airport, so be stealthy around muggles but open and honest with airport security. The container is a micro-size container well-hidden from muggles, but a geocacher can spot the likely place and make further inquiries.