https://calstar.observers.org/

CalStar is at Lake San Antonio County Park.

CalStar is a regional dark-sky star party. The event format and atmosphere are quite casual, and there are no scheduled activities, vendors, or fees other than the camping fee collected at the park entrance.  At CalStar, the focus is on observing and enjoying the dark skies and good company.

The LSA park is open and we have access to the overflow camping area.

Come early stay late. The dates you see are simply guidelines.
There is no pre-registration or pre-payment, just show up and pay the current LSA camping fee for the number of nights you will stay.