This cache is hidden in one of the small parks scattered throughout Eureka. Besides some B-ball hoops, this park boasts a couple of zen reflecting pools... Alright, they are actually bocce ball courts, during the dry season at least. There is also a small field and play structure. Numerous picnic tables and benches are also available.
The Park is un-fenced and although most Eureka parks have a “dawn to dusk” open period, you can likely access the cache 24-hours-a-day as long as you don’t appear to be setting up camp.