The video shows a large squid swimming in the ocean. The squid has a long body and tentacles that it uses to navigate through the water. The squid's skin is a mottled green and brown color, which helps it blend in with the surrounding environment. The ocean water is a deep blue color, and the bottom of the ocean is visible with rocks and coral. The squid moves gracefully through the water, its tentacles undulating gently as it swims.