Just hours after her swim ended in a shark bite off the Del Mar shore, Lyn Jutronich is ready to share her terrifying experience. Jutronich swam competitively in college and swims in the ocean two or three times a week. Friday morning she and her swim partner were resting in the water, before heading back to shore when something slammed into her. Lyn says she immediately knew, without a doubt, she was up against a shark.