Crystal Cove Beach Cottages are magical during the golden hour (the 60 minutes before sunset). Some days, the sky looks like pink cotton candy and the waves are a glowing turquoise. Use the golden light as your main source of illumination, adding a little fill with a reflector, if needed. You could set up cute photo ops with the kids at the Education Commons, at iconic Cottage 46 (home to rotating exhibits), the tide pools, or right on the beach with the ocean in your background.
Crystal Cove State Park, Historic District, 8471 North Coast Highway, Laguna Beach, 949-494-3539