What springs to mind when you think of Southern California? Wide-open beaches? Streets lined with palm trees? Surfers, bikers, and rollerbladers mingling about? How about picture-perfect sunsets by the shore? An hour south of LA, Huntington Beach ticks all those boxes with panache. With its all-season sunshine and enormous sandy expanse of Pacific coastline, Huntington Beach sets the stage for a very leisurely layover. Nicknamed Surf City USA, w…