Lake Arrowhead is a private lake and the properties immediately surrounding the lake are part of "Arrowhead Woods."
"The Arrowhead Woods Architectural Committee is a California Nonprofit Public Benefit Corporation with broad powers dating from 1923 to enforce the covenants, conditions and restrictions attached to all properties in Arrowhead Woods. Arrowhead Woods consists of 4,886 acres of land surrounding Lake Arrowhead. The land is divided into approximately 10,000 parcels." This from the AWAC website.
Of course, just let us know and we can confirm the lake rights for any property that you are interested in. Simply text the address you are interested in to 909.559.0618.
If you will want to put watercraft in the lake you will want to learn more about the Arrowhead Lake Association.
The image below shows the properties that are within the lake rights boundary.