 Sand ripples on a beach. Kurort, west from Saint Petersburg, Russia, May 31, 2014
 Sand ripples on a beach in Solnechnoe, west from Saint Petersburg. Russia, May 20, 2019
 Sand ripples on Laskovyi Beach in Solnechnoe, west from Saint Petersburg. Russia, August 7, 2024
 Sand ripples at low tide on Laskovyi Beach in Solnechnoe, west from Saint Petersburg. Russia, August 7, 2024
 Sand ripples on a beach in Solnechnoe, near Saint Petersburg. Russia, May 17, 2021
 Sand ripples on a beach near Sestroretsk, a suburb of Saint Petersburg. Russia, May 19, 2011
 Sand ripples on a beach east of Solnechnoe, near Saint Petersburg. Russia, May 12, 2016
 Sand ripples on a beach of Gulf of Finland in Solnechnoe, near Saint Petersburg. Russia, May 17, 2021
 Texture of sand ripples on a beach east of Solnechnoe, near Saint Petersburg. Russia, May 12, 2016
 Graffiti on a beach wall near Kurort, north-west from Saint Petersburg. Russia, July 8, 2016
 Sand ripples and sand mounds at sunrise near Sealine Beach Resort near Mesaieed, view to north-west. Southern Qatar, July 10, 2015
 Sand ripples on a beach in Marouna. Northern Qatar, December 19, 2014
 Orange graffiti on a beach wall near Kurort, north-west from Saint Petersburg. Russia, July 8, 2016
 Sand ripples on a beach in Abu Samra, near the border. Southern Qatar, November 29, 2014
 Geometrical patterns on graffiti on a beach wall near Kurort, north-west from Saint Petersburg. Russia, July 8, 2016
 Bittersweet nightshade (Solanum dulcamara, Russian name Paslion) on a beach near Kurort, north-west from Saint Petersburg. Russia, July 8, 2016
 Ripples on wet sand in Solnechnoe, west from Saint Petersburg. Russia, May 20, 2019
 Water crowfoot (Batrachium circinatum, Russian name Shelkovnik) thrown by waves on a beach near Kurort, north-west from Saint Petersburg. Russia, July 8, 2016
 Large grains of sand on a beach. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Large grained sand on a beach. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Sand ripples at sunrise near Sealine Beach Resort near Mesaieed, view to north-west. Southern Qatar, July 10, 2015
 Sand ripples at sunrise near Sealine Beach Resort near Mesaieed, view to north-west. Southern Qatar, July 10, 2015
 Ripples on a sand mound near Sealine Beach Resort near Mesaieed, view to north-west. Southern Qatar, July 10, 2015
 Sand mounds and ripples near Sealine Beach Resort near Mesaieed, view to north-west. Southern Qatar, July 10, 2015
 Sand ripples at low tide in French Beach (42 km Beach), on north-eastern coast. Qatar, March 4, 2010
 A lobster pot, sand ripples and beach grass at sunset on Horseneck Beach. Westport, Massachusetts, December 17, 2004
 Sand ripples on French Beach (42 km Beach) in Marouna, on north-eastern coast. Qatar, March 19, 2016
 Sand ripples on a sandy bar at low tide in French Beach (42 km Beach), on north-eastern coast. Qatar, March 4, 2010
 Sand mounds and ripples at sunrise near Sealine Beach Resort near Mesaieed, view to north-west. Southern Qatar, July 10, 2015
 Sand ripples after windy weather near Sealine Beach Resort near Mesaieed, view to north-west. Southern Qatar, July 10, 2015
 Intricate patterns in the sand that are wave-formed ripples (also known as oscillation ripples), which provide a frozen snapshot of the water s movement just before the tide or water level receded. They are formed by the back-and-forth oscillatory motion of water particles at the bottom of shallow waves. As a wave passes, water moves sand grains forward and then backward, piling them into these neat, parallel ridges. The crests (ridges) of the ripples run parallel to the shoreline, which is typical for wave-formed ripples as they align perpendicular to the direction of wave propagation. The preservation of such sharp ripple crests indicates the water receded gently, likely during a calm period after the windier conditions that initially formed them. Sestroretsk near Saint Petersburg, Russia, October 9, 2025
 Wavy pattern of sand ripples and sand mounds with plants of Seidlitzia rosmarinus at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Iron oxides in water on a beach near Sestroretsk. West from Saint Petersburg, Russia, May 12, 2017
 Iron oxides and bubbles in water on a beach near Sestroretsk. West from Saint Petersburg, Russia, May 12, 2017
 Sand ripples on a beach in Ship Island. Mississippi, October 29, 2006
 Film City, a mini-town film set for a television series "Eial al Deeb: The Suns of the Volf" in Ras Abrouq peninsula in west central coastal area, north from Zekreet. Qatar, November 14, 2014
 Film props in a yard of Lenfilm film production enterprise. Saint Petersburg. Russia, July 19, 2012
 Skeletons of beach fences covered by drifting mixture of snow and sand, view from Ballston Beach in Cape Cod. Truro, Massachusetts, January 18, 2005.
 Sand ripples east of Solnechnoe, near Saint Petersburg. Russia, May 12, 2016
 Sand ripples near Sestroretsk, a suburb of Saint Petersburg. Russia, May 19, 2011
 Sand ripples at sunrise in Solnechnoe, near Saint Petersburg. Russia, May 17, 2021
 A lobster pot and sand ripples at evening on Horseneck Beach. Westport, Massachusetts, December 17, 2004
 Sand ripples at windy evening on Horseneck Beach. Westport, Massachusetts, December 17, 2004
 Sand ripples near Sealine Beach Resort near Mesaieed. Southern Qatar, July 10, 2015
 Sand ripples near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Sand ripples at low tide in Long Point Beach in Cape Cod. Provincetown, Massachusetts, February 5, 2005.
 A rocky beach and dry sand ripples at the end of River Road in Acoaxet. Westport, Massachusetts, April 6, 2004
 Sand ripples at low tide in Long Point Beach in Cape Cod. Provincetown, Massachusetts, February 5, 2005.
 Iron oxide sands south from Mount Ardon in Ramon Crater. The Middle East, February 9, 2002
 Pattern of sand ripples at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Texture of sand ripples at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, July 10, 2015
 Pattern of sand ripples at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, July 10, 2015
 Sand ripples and low dunes at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Wavy sand ripples at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Beach sand ripples at low tide in Demarest - Lloyd State Park. Dartmouth, Massachusetts, November 14, 2004
 Car tracks on sand ripples at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Beach sand ripples at low tide in Demarest - Lloyd State Park. Dartmouth, Massachusetts, November 14, 2004
 Multicolored iron oxide sands south from Mount Ardon in Ramon Crater. The Middle East, February 9, 2002
 "Bulldozing" trails left by a freshwater mussel of the family Unionidae, most probably the Duck Mussel (Anodonta anatina) or the Painter s Mussel (Unio pictorum) on a beach near Kurort. The deep, meandering furrow left in the sand is a classic "ploughing" trace (known as repichnia). These mussels use a large, muscular foot to drag themselves slowly through the upper layer of sediment, leaving behind the U-shaped groove. Saint Petersburg, Russia, October 9, 2025
 Wavy pattern of sand ripples at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Windblown sand mounds and ripples at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Dunes of Sestroretsky Kurort, west from Saint Petersburg. Russia, September 5, 2013
 Expansive view looking north-northwest from the southern end of the Sestroretsk coastline towards the Sestroretsk Resort (Kurort) and, further in the distance, the settlement of Solnechnoe (Sunny). The coastline curves gently inward. This specific geography near Sestroretsk causes the eastward littoral drift (sand movement) to weaken, resulting in a very wide, accretional beach (up to 140 meters wide) known for its fine sand and extensive dunes. The foreground shows a sandy spit or sandbar created by the outflow of water. The shallow water here creates the wide, calm pools seen in the foreground, which are popular with birds. Sestroretsk near Saint Petersburg, Russia, October 9, 2025
 Beach sand ripples at Deepwater Pt. in Demarest - Lloyd Memorial State Park at low tide. Dartmouth, Massachusetts, November 13, 2003
 Course-grained sand on a beach in Solnechnoe, west from Saint Petersburg. Russia, May 20, 2019
 Grains of sand on a beach in Solnechnoe, west from Saint Petersburg. Russia, May 20, 2019
 Forest in dunes of Sestroretsky Kurort, west from Saint Petersburg. Russia, September 5, 2013
 Large grains of sand on a beach in Solnechnoe, west from Saint Petersburg. Russia, May 20, 2019
 Course-grained sand on a beach in Solnechnoe, west from Saint Petersburg. Russia, October 2, 2016
 Wavy sand ripples and low mounds with plants of Seidlitzia rosmarinus at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Iridescent oil film on the surface Griboedova Canal. Saint Petersburg, Russia, June 23, 2014
 Large-grained sand on Laskovyi Beach in Solnechnoe, west from Saint Petersburg. Russia, August 7, 2024
 Blue bottle shard (sea glass) on sand on a beach in Solnechnoe, west from Saint Petersburg. Russia, May 20, 2019
 Large sand grains on a beach in Solnechnoe, north-west from Saint Petersburg. Russia, July 8, 2016
 Camel s tracks crossing vehicle s tracks over wavy sand ripples at sunrise near Sealine Beach Resort near Mesaieed. Southern Qatar, December 11, 2015
 Seabeach sandwort (Honckenya peploides) in sand behind reeds on a beach in Sestroretsk, north-west from Saint Petersburg. Russia, July 8, 2016
 Beach pea in dunes. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Blooming seabeach sandwort (Honckenya peploides) in sand behind reeds on a beach in Sestroretsk, north-west from Saint Petersburg. Russia, July 8, 2016
 Grains of granite on a beach. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Roots of reeds on a beach. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Massive roll-rim mushroom Paxillus obscurisporus(?) in sand on a beach in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 2, 2018
 Spikelet of sand ryegrass (Leymus arenarius, Russian name Volosnets peschany) on a beach in Solnechnoe, north-west from Saint Petersburg. Russia, July 8, 2016
 Colony of plants of seabeach sandwort (Honckenya peploides) in sand behind reeds on a beach in Sestroretsk, north-west from Saint Petersburg. Russia, July 8, 2016
 Dissected massive roll-rim mushroom Paxillus obscurisporus(?) in sand on a beach in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 2, 2018
 Shells of snails on a beach in Dubki Park. Sestroretsk, west from Saint Petersburg, Russia, May 31, 2014
 Fishing rope among sea grass on a beach near ruined village of Al Jumail (Jumayl) used for film set, west of Ruwais on northwest coast. Qatar, March 3, 2010
 Blooming Seabeach sandwort (Honckenya peploides) on a beach. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Blooming Seabeach sandwort (Honckenya peploides) on a beach. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Flowers of Seabeach sandwort (Honckenya peploides) on a beach. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Beach of Gulf of Finland near Komarovo, 25 miles north-west from Saint Petersburg. Russia, June 16, 2014
 Date palms (Phoenix dactylifera) covered by windblown sand near a beach in the area of Al Hamala (Al Hamlah) Water Well near Umm Bab. South-western Qatar, January 30, 2016
 Film City, a mini-town film set for a television series "Eial al Deeb: The Suns of the Volf" in Ras Abrouq peninsula in west central coastal area, north from Zekreet. Qatar, February 13, 2010
 "Bulldozing" trails left by a freshwater mussel of the family Unionidae, most probably the Duck Mussel (Anodonta anatina) or the Painter s Mussel (Unio pictorum) on a beach near Kurort. The shell partially visible at the end of the trail is large, oval, and relatively smooth with a dark, brownish-yellow periostracum (outer skin). Saint Petersburg, Russia, October 9, 2025
 Seabeach sandwort (Honckenya peploides) in sand near Gulf of Finland. Solnechnoe, west from Saint Petersburg, Russia, May 31, 2014
 Beach rose (Rosa rugosa, Russian name Shipovnik), sand ryegrass (Leymus arenarius) and seabeach sandwort (Honckenya peploides) in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 2, 2018
 Ludomir Zmigrodsky House at 3 Andreeva Street in Sestroretskiy Kurort, 15 miles north-west from Sankt Petersburg. Russia, October 2, 2000
 A wooden house built at the end of 19th century (?) at 7/59 Morskaya Street near Sestroretskiy Kurort, 15 miles north-west from Sankt Petersburg. Russia, October 2, 2000
 A stone arch bridge of the Kristatelka River situated downstream from the "Adam s Head" sculpture. The bridge features a solid, polished masonry arch topped with a simple, functional black iron railing. Spanning a cascade of moss-covered boulders and small waterfalls, the bridge sits deep within the ravine, creating a secluded atmosphere amplified by the dense canopy of trees. Sergievka Park, Old Peterhof, west from Saint Petersburg, Russia, October 13, 2025
 Leaves of milkvetch Astragalus arpilobus subsp. hauarensis covered by sand near Umm Bab in south-western Qatar, February 21, 2014
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