Giochi di luce su ciottoli fluviali

Sunlight creates caustic patterns on submerged green and grey pebbles in a river, with air bubbles clinging to the stones and a clear, emerald-toned open space to the right.

A macro photo of bright caustic sunlight over submerged pebbles and air bubbles in the Verzasca river, calm emerald water Mostra altro

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Sunlight caustics illuminate river pebbles and mossy stones underwater, with small air bubbles clinging to the surfaces and clear water above.

An underwater view of a dense kelp forest with sunlight filtering through the canopy in rays, illuminating suspended particles in the green water.

A sequence of frog development, from eggs to a fully formed frog, rests on a sunken branch in a sunlit, clear underwater pond environment.

A cluster of small air bubbles rises through clear turquoise water above a sandy seabed with coral reefs, illuminated by bright sunlight from the surface.

A split-level underwater and above-water view of a tropical reef edge at Pulau Hantu, featuring plate corals and a carpet anemone in shallow green water, with a forested islet and hazy sky visible above the waterline.

A low-angle underwater view of hundreds of Velella velella, or by-the-wind sailors, floating at the surface of the ocean with sun rays filtering through the water.

A small sea turtle hatchling rests within a dense patch of golden sargassum seaweed at the ocean surface, captured in a split-level shot showing the dawn sky above and the deep blue water below.

An underwater view of a breaking ocean wave at dawn, with sunlight filtering through the translucent green water onto a sandy seabed with scattered shells.

An underwater view of a shallow reef with brain corals and a school of striped sergeant fish, looking up at a rain-pocked surface in soft grey-green light.

An underwater view of a breaking wave with sunlight filtering through the water, illuminating the sandy ocean floor and suspended sediment.

A sea turtle swims past a vibrant coral reef wall featuring large red and violet sea fans, with sunbeams filtering through the water from the surface.

An underwater view of a clear river with a sandy bottom, green aquatic plants, and several golden fish swimming in the sunlit water.

Sunlight streams through the surface of deep blue water, creating visible light rays that penetrate into the dark depths below.

A dense thicket of staghorn coral sits in shallow, clear turquoise water, with a large school of small blue-green fish hovering above the branches and sunlight creating shimmering patterns on the sandy lagoon floor.

An underwater view of a breaking wave with glowing green water and white foam, looking up from a sandy seabed covered in shells and seaweed toward the surface.

A view looking up from deep underwater toward the circular opening of a blue hole, with bright turquoise light filtering down through the water and silhouettes of people visible at the surface.

A view looking down into a deep underwater chasm with rocky walls featuring stalactites, illuminated by sunlight filtering from the surface into the dark blue water.

A sea turtle swims near the surface of the ocean, silhouetted against a bright sunburst with light rays filtering down onto a coral reef below.

A shallow, clear river flows over a bed of smooth grey and ochre pebbles in a sunlit forest.

A close-up underwater view of green aquatic plants covered in oxygen bubbles, with sunlight filtering through the water onto a gravel riverbed.

An underwater view of a turquoise ocean current swirling white sand and numerous air bubbles, illuminated by bright sunlight filtering down from the surface.

A vibrant coral reef with purple staghorn coral and ochre brain coral sits on a sandy seabed under clear, sunlit water with rippling light caustics and a school of small fish in the background.

An underwater view looking up at a dense layer of floating pumice stones, with sunlight streaming through the gaps in rays and small silver fish swimming beneath the rocks.

A vibrant coral reef wall drops into the deep blue ocean, illuminated by bright sunlight filtering through the water surface.

An underwater view of the Silfra fissure featuring dark basalt rock walls, vibrant lime-green algae on submerged boulders, and bright sunlight filtering through clear blue water.

Sunlight filters through the water in a kelp forest, illuminating kelp bass swimming among rocky terrain and tall kelp stalks.

Underwater view of green aquatic plants covered in small oxygen bubbles, illuminated by bright sunlight filtering down from the surface.

Underwater view of Champagne Reef featuring volcanic gas bubbles rising from a black sand seabed surrounded by coral, sea fans, and sponges, with sunbeams filtering through the water.

A wide-angle underwater view of a vibrant coral reef teeming with yellow tang and blue damselfish, featuring brain coral and sea fans under clear, sunlit turquoise water.

Underwater view of a Posidonia seagrass meadow with long green blades backlit by sunlight, featuring a sandy bottom with light patterns and a small school of fish swimming through the vegetation.

A beam of sunlight illuminates a rocky underwater cave wall covered in red coral and yellow sponges, with a small school of red cardinalfish swimming in the light.

A vibrant Caribbean coral reef drop-off features sea fans and barrel sponges in the foreground, with sun rays piercing through clear blue water into the deep abyss.

Submerged mangrove roots with textured bark extend through clear turquoise water under bright sunlight.

A vibrant coral reef wall teeming with barrel sponges, rope corals, and small fish, illuminated by sunlight filtering through the water from the left side.

Several red cushion sea stars rest on the pale sandy seabed in clear, shallow water near mangrove roots, with sunlight creating rippling patterns on the seafloor.

Sunlight streams through an opening in a cave ceiling into the clear turquoise water of a cenote, illuminating limestone rock formations and mineral deposits on the floor.

An aerial view of sea otters resting on their backs amidst a dense canopy of golden-brown kelp floating on clear green ocean water.

A small white submersible floats near a towering column of silver bubbles rising from an underwater vent, illuminated by a shaft of amber light in a deep teal ocean with pale fronds on the seafloor.

A shallow tide pool on a rocky shore contains green sea anemones surrounded by pink coralline algae and barnacles, reflecting a pale sky in the calm water.

Sunlight filters through the water surface, illuminating a school of small fish swimming among mangrove roots covered in colorful pink and yellow soft corals.

A close-up view of submerged aquatic plants with oxygen bubbles clinging to their fine, green leaves, illuminated by sunlight filtering through clear water above a gravel riverbed.

A split-level view of a clear river in summer, showing the gravel bed and aquatic plants underwater with two fish swimming, and a tree-lined bank above the water surface.

A water stick insect clings to submerged reed stems in clear water, with its body angled toward the sunlit surface as light rays filter through.

Golden sunlight filters through the surface of the water into a dense underwater kelp forest, illuminating the amber fronds and small fish swimming among the stalks.

An underwater view of a Posidonia seagrass meadow growing on a sandy seabed with sunlight filtering through the clear blue water above.

A large school of small, silver fish swims through a bright shaft of sunlight penetrating the deep blue water, with the surrounding area fading into darkness.

A dense bed of purple sand dollars stands on edge in the sandy seafloor of Puget Sound, illuminated by shafts of afternoon sunlight filtering through the green water.

An alligator snapping turtle rests on the sandy bottom of a clear river, illuminated by sunbeams filtering through the water with aquatic vegetation in the background.

An underwater view of a turquoise swimming pool floor illuminated by golden caustic light patterns created by rippling water surface.

A freediver swims upward through columns of rising bubbles above a dark volcanic seabed with purple sea fans, illuminated by sun rays breaking through the water surface.

A school of golden dourado fish swims over a pale sandy riverbed surrounded by lush green aquatic plants in the clear, sunlit waters of the Rio da Prata near Bonito.

A view of an Okinawa fringing reef at noon, featuring coral heads and turquoise sand channels with sunlight caustics, a white surf line in the distance, and deep blue ocean water under a bright sky.

Bright orange garibaldi fish swim among purple sea urchins in a kelp forest, with shafts of sunlight filtering through the deep blue water.

A snorkeler is silhouetted against the sunlit surface of the ocean above a vibrant coral reef teeming with small orange fish.

A brown trout swims through clear water surrounded by white water-crowfoot flowers over a gravel riverbed, with sunlight creating rippling caustics on its body.

An underwater view of a Posidonia seagrass meadow with long green blades growing on a sandy seabed, illuminated by sunlight rippling through the clear water.

A high-angle, close-up view of smooth, multi-colored river stones submerged in clear water, with sunlight creating a network of bright caustic patterns across their surfaces.

An underwater scene depicting an Ediacaran sea floor with feathery Charnia fronds and quilted Dickinsonia discs resting on a microbial mat, illuminated by shafts of sunlight filtering through the water.

Sunlight filters through the surface of the water into a kelp forest in False Bay, illuminating the tall stalks, fish, and rocky seafloor covered in sea urchins and a starfish.

A vertical underwater view shows a single bright sunbeam piercing through clear blue water, illuminating a rocky reef and a sandy sea floor with small fish swimming in the light.

A pig-nosed turtle swims through clear, shallow water over a sandy riverbed, with sunlight creating dappled patterns on its shell and the bottom.

A wide-angle underwater view of a coral reef with tan and violet hard corals and a school of small fish swimming in clear blue water under bright sunlight.

A vibrant coral reef wall teeming with diverse soft corals and sea fans is illuminated by sunlight filtering through the water, with a steep drop-off into deep blue water on the right.

A close-up view of a moss-covered boulder with a small stream of water trickling over it, set against a dark, calm body of water under soft, overcast lighting.

A young loggerhead turtle swims beneath a floating raft of golden sargassum seaweed in the ocean at sunrise, captured in a split-level shot showing the surface and the depths.

An underwater view of a breaking wave with sand swirling in the lower portion and sun rays filtering through the clear green water above.

A green sea turtle rests on a coral reef at Apo Island, surrounded by a shoal of orange anthias fish under sunlight filtering through the water.

Sunlight streams through openings in the ceiling of an underwater lava tube, illuminating the white sandy floor and a small school of fish swimming between dark basalt rock walls.

A dense bed of golden kelp with air-filled bladders floats on the surface of the ocean near a misty, rocky coastline.

A school of yellow butterflyfish swims above a vibrant coral reef in clear, shallow turquoise water with sunlight filtering from the surface.

A column of silver air bubbles rises through the clear blue water of a cenote, illuminated by a single shaft of sunlight streaming from the opening above, surrounded by dark limestone walls and hanging tree roots.

A submerged wooden footbridge and larch tree trunks stand on a flooded meadow underwater, illuminated by caustic sunlight filtering through the emerald water above.