I would say that her breasts are massive! They are bigger than her head, and I think the tides in the ocean are affected by her breasts. The videos of her are posted by qmanxxl12, though who knows if it's her. There are many comments to the videos, so the answer might be in a comment.
She's like a young Laura San Giacomo, but flip-flop girl is probably only 15 years old, so don't stare at her cleavage.