English: This photograph of the Bassas da India, an uninhabited atoll in the Indian Ocean, has an almost surreal quality due to varying degrees of sunglint. In this image, the presence of currents is highlighted as darker patches or streaks (image left and upper right). In contrast, shallow water in the lagoon presents a more uniform, mirror-like appearance, suggesting that there are no subsurface currents. Wave crests visible around the atoll are likely the result of both surface winds and subsurface currents.