Malibu Life Ice Age By editorial - September 4, 2014 0 238 FacebookTwitterPinterestWhatsApp One explanation for the underwater mesa off the Malibu coast is that the Chumash say at first, people lived in a coastal valley that was flooded out at the end of the last ice age. Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Like this:Like Loading... Related