This video captures a close-up view of a sea turtle swimming underwater. The turtle's head is visible, and it appears to be looking directly at the camera. The turtle's skin is dark and textured, and its eye is large and round. The water around the turtle is clear, allowing for a good view of the turtle's features. The turtle seems to be calmly swimming, with no rapid movements or signs of distress. The video does not show any other sea creatures or objects in the water.