The video shows a close-up of a sea urchin with long black spines and blue tips. The sea urchin is stationary and appears to be resting on the ocean floor. The surrounding water is clear, and there are no other visible creatures or objects in the vicinity. The sea urchin's spines are densely packed, and its body is slightly rounded. The blue tips on the spines are bright and contrast with the darker color of the spines. The sea urchin's texture looks rough and bumpy.