Is that GPS location of Santa Cruz?
L41 was coined by Kirk McGinty of L41 surfboards. It stands for "Lower 41st", as in 41st ave in the Santa Cruz/Capitola area.
It has since morphed into a catch all description of the entire Pleasure Point to Capitola area.
It includes all of the breaks from the Hook south to Capitola. Sharks Cove, Privates, Trees, etc.
Kirk is way ahead of his time. 8)