How many waves will it take? (image story in the description)

She made her way along the narrow ledge of the sea wall out to where the waves were breaking at the corner. She fully anticipated being thoroughly soaked before she made her way back to the steps leading to the top of the wall. She just wasn't sure how long it would take or how cold the water was. It didn't take long for her to find out. As she reached the end of the ledge, a wave broke, getting her wet to her knees. The next wave was a big one, it's splash drenching her as she turned and giggled. A third wave crashed around her, completing the task of thoroughly soaking her head to toe. 3 waves was all it took. She moved a little closer to the steps but continued allowing the waves to splash her for a bit giggling each time. Finally, she headed back up the steps to her group so they could head on to their next stop.

Thanks to @yvettefrancaise for the start image and inspiration!