no, it's not. LA is a river basin historically, and even with some bluffs, it's not protected enough from ingress all around (and water falls from the sky too!)

no, it's not. LA is a river basin historically, and even with some bluffs, it's not protected enough from ingress all around (and water falls from the sky too!). the simulator you linked to makes no sense (or maybe it's broken in my ad-blocking browser). it shows ingress on palos verdes, which is basically a mini-mountain right on the shore that would become an island with enough sea rise.