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A person in a wetsuit stands on a submerged concrete structure, then dives into the water and swims through a narrow underwater channel, before ascending toward the surface where a boat is visible above.
![[*]_[*]](https://media.coub.com/assets/01a0919e-ca96-77ea-8bca-9627ddc21e0f/g-e85122cc-31b5-40fe-a1c9-b1a4052a8221/coub-poster.jpg?v=1789149520)
