[She was on the beach because she was planning to stay overnight in one of the huts, and she just so happened to come across Ven on her way there.
It looked like he was focusing pretty hard to her, so without a word she sat down and she started making a wall a little ways away in order to protect his sandcastle. She wasn't sure if it would work, and it would certainly need to be rebuilt every time a wave came in, but it was better than nothing, right?]