Rusty spring from a car at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, August 29, 2015
Seaweeds at low tide on rocks west from Acoaxet. Massachusetts, February 7, 2004.
Seaweeds at low tide on rocks west from Acoaxet. Massachusetts, February 7, 2004.
Sea sponge at low tide on Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 28, 2016
Beach sand ripples at Deepwater Pt. in Demarest - Lloyd Memorial State Park at low tide. Dartmouth, Massachusetts, November 13, 2003
A rocky reef at low tide, Westport River and the Knubble in Acoaxet from Horseneck Point. Massachusetts, May 15, 2003
Mud flat near mangrove forest exposed at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
Sand ripples on a sandy bar at low tide in French Beach (42 km Beach), on north-eastern coast. Qatar, March 4, 2010
View of West Bay from Corniche promenade at low tide. Doha, Qatar, June 28, 2013
View of West Bay from Corniche (seafront promenade) across harbor at low tide. Doha, Qatar, January 29, 2010
"Arabic calligraphy" made by creeping sea worms on a sandy bar at low tide in French Beach (42 km Beach), on north-eastern coast. Qatar, March 4, 2010
Sand ripples at low tide in Long Point Beach in Cape Cod. Provincetown, Massachusetts, February 5, 2005.
Sand ripples and rocky northern tip of Purple Island (Jazirat Bin Ghanim) at low tide. Al Khor, Qatar, April 2, 2016
Exposed starfish at low tide in Beavertail Point in Conanicut Island. Rhode Island, October 9, 2003
Fishing from Sachuest Point, at low tide. Newport, Rhode Island, July 3, 2004
Beach sand ripples at low tide in Demarest - Lloyd State Park. Dartmouth, Massachusetts, November 14, 2004
Point Judith Lighthouse at low tide. Narragansett, Rhode Island, October 31, 2004
Stingray(?) sand crater at low tide in Arabian (Persian) Gulf near Mesaieed, north from Doha. Qatar, January 29, 2010
Beach sand pattern at low tide near Richmond Pond west from Acoaxet at evening. Westport, Massachusetts, November 15, 2004
Mangrove trees at low tide in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 19, 2010
Exposed seaweeds at low tide in Black Point. Narragansett, Rhode Island, November 15, 2003
Sand ripples at low tide in French Beach (42 km Beach), on north-eastern coast. Qatar, March 4, 2010
Exposed starfish at low tide in Beavertail Point in Conanicut Island. Rhode Island, October 9, 2003
Starfish in Brenton Point in Newport at low tide. Rhode Island, October 25, 2003
Qatar Natural History Group wading at low tide in Arabian (Persian) Gulf near Mesaieed, north from Doha. Qatar, January 29, 2010
Point Judith Lighthouse in Narragansett at low tide. Rhode Island, September 27, 2003
Exposed sea animals at low tide in Beavertail Point in Conanicut Island. Rhode Island, October 9, 2003
Sand ripples at low tide in Long Point Beach in Cape Cod. Provincetown, Massachusetts, February 5, 2005.
Mangrove trees (Avicennia marina) at low tide south from Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, December 20, 2015
Rockweed at low tide on Horseneck Beach, from a road to Gooseberry Neck. Westport, Massachusetts, May 17, 2003
Starfish in Brenton Point in Newport at low tide. Rhode Island, October 25, 2003
Rockweed and spongeweed in Gooseberry Point at low tide. Westport, Massachusetts, November 23, 2003
Beach sand ripples at low tide in Demarest - Lloyd State Park. Dartmouth, Massachusetts, November 14, 2004
Long Point at low tide in Cape Cod. Provincetown, Massachusetts, February 5, 2005.
Reflections of West Bay from Corniche promenade at low tide. Doha, Qatar, June 28, 2013
Muddy soil of mangrove forest exposed at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
Rockweed and snails in Gooseberry Point at low tide. Westport, Massachusetts, November 23, 2003
Rippled texture of a sandy bar at low tide in French Beach (42 km Beach), on north-eastern coast. Qatar, March 4, 2010
Reflections of Spiral Mosque from Corniche promenade at low tide at morning dusk. Doha, Qatar, June 28, 2013
Starfish in Brenton Point in Newport at low tide. Rhode Island, October 25, 2003
Gooseberry Neck (Horseneck Beach) at low tide. Westport, Massachusetts, February 26, 2004
Reflections of West Bay from Corniche promenade at low tide at morning dusk. Doha, Qatar, June 28, 2013
Point Judith in Narragansett at low tide. Rhode Island, September 27, 2003
Point Judith Lighthouse in Narragansett at low tide. Rhode Island, September 27, 2003
Ventral view of sea slug (shell-less marine gastropod mollusk, Peronia peronii, Onchidium peronii) at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 29, 2015
Sand crab at low tide near its burrow in Al Mafyar (Mafjar) area on northern coast (Al Shamal). Qatar, June 27, 2015
Rusty vehicle spring at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, August 29, 2015
Mangrove (Avicennia marina) with aerial roots (pneumatophores) at low tide on Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 28, 2016
Quicksand Pond west from Acoaxet at low tide. Little Compton, Rhode Island on border with Massachusetts, August 23, 2003
Town Neck beach in Cape Cod at low tide. Sandwich, Massachusetts, November 8, 2003
Rockweed at low tide on Gooseberry Neck. Westport, Massachusetts, May 17, 2003
Elk on a sandy bar at low tide in French Beach (42 km Beach), on north-eastern coast. Qatar, March 4, 2010
Close up of aerial roots (pneumatophores) of mangroves (Avicennia marina) exposed at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
Line of aerial roots (pneumatophores) of a mangrove tree (Avicennia marina) at low tide near a fishing village of Al Jumail (Jumayl) west of Ruwais. Northern Qatar, June 26, 2015
Rockweed in Gooseberry Point at low tide. Westport, Massachusetts, November 23, 2003
Rockweed in Gooseberry Point at low tide. Westport, Massachusetts, November 23, 2003
Old vehicles at low tide on a beach in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, March 1, 2010
Town Neck beach in Cape Cod at low tide. Sandwich, Massachusetts, November 8, 2003
Mud creepers at low tide on Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 28, 2016
Exposed seaweeds at low tide near Acoaxet. Massachusetts, October 9, 2003
Rockweed in Gooseberry Point at low tide. Westport, Massachusetts, November 23, 2003
Mangrove forest at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
East side of Long Point beach at low tide. Cape Cod, Provincetown, Massachusetts, June 20, 2004
Line of beachrock stones remained from ancient ingenious intertidal stone fish trap at low tide in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, March 4, 2011
Lights of West Bay from Corniche promenade at low tide. Doha, Qatar, June 28, 2013
Seaweeds at low tide in Brenton Point. Newport, Rhode Island, July 3, 2004
Rockweed at low tide in Brenton Point. Newport, Rhode Island, July 3, 2004
Pebbles at low tide at Rome Point. North Kingston, Rhode Island, January 7, 2005
A moat of Fort Pike at low tide. Eastern New Orleans, Louisiana, November 23, 2006
Shells of a marine gastropod mollusk (sea snail) Clypeomorus bifasciatus at low tide in Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
View of Horseneck Beach from the Knubble at low tide. Acoaxet, Massachusetts, November 7, 2003
Spongeweed (dead man s fingers) and irish moss in Gooseberry Point at low tide. Westport, Massachusetts, November 23, 2003
Lobster traps(?) at low tide in Provincetown Harbor. Cape Cod, Massachusetts, June 20, 2004
A damaged fishing pier at low tide near Lakeshore, west from Bay Saint Louis. Mississippi, November 23, 2006
Aerial roots (pneumatophores) of mangrove (Avicennia marina) at low tide at northern tip of Qatar, March 24, 2012
Corals and sea snails at low tide on a beach of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
Northern tip of Purple Island (Jazirat Bin Ghanim) at low tide. Al Khor, Qatar, April 2, 2016
Intertidal stone fish traps at northern tip of Purple Island (Jazirat Bin Ghanim) at low tide. Al Khor, Qatar, April 2, 2016
Fishing pier at low tide near Lakeshore, west from Bay Saint Louis. Mississippi, November 23, 2006
Algae Oyster Thief (Colpomenia sinuosa) at low tide on a beach of Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
Seaweeds at low tide in Brenton Point. Newport, Rhode Island, July 3, 2004
Grey mangroves (Avicennia marina, qurm, shourah) surrounded by aerial roots (pneumatophores) at low tide in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 19, 2010
Rockweed and sea lettuce in Gooseberry Point at low tide. Westport, Massachusetts, November 23, 2003
Remnants of ancient ingenious intertidal stone fish traps (rows of beachrock stone arranged in walls in semi-circular patterns) at low tide in Al Aaliya Island (Jazirat al Aliyah). Qatar, March 27, 2013
Rusty iron parts of a vehicle at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 29, 2015
Mangrove forest (Avicennia marina) at low tide at northern tip of Qatar, east from Ruwais, March 24, 2012
Boat at low tide on a small peninsula. Ruwais, Northern Qatar, April 3, 2015
Mud flat exposed at low tide near mangrove forest near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
Mud flat with aerial roots (pneumatophores) of mangroves (Avicennia marina) exposed at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
Aerial roots (pneumatophores) of mangroves (Avicennia marina) exposed at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
Rusty iron parts of a decomposing vehicle at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 29, 2015
Mud creepers at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 29, 2015
Sea slug (shell-less gastropod mollusk, Peronia peronii, Onchidium peronii) at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 29, 2015
Grey mangrove (Avicennia marina, qurm, shourah) surrounded by aerial roots (pneumatophores) at low tide near a fishing village of Al Jumail (Jumayl) west of Ruwais. Northern Qatar, June 26, 2015
Mangrove tree (Avicennia marina) surrounded by aerial roots (pneumatophores) at low tide near a fishing village of Al Jumail (Jumayl) west of Ruwais. Northern Qatar, June 26, 2015
Grey mangroves (Avicennia marina) surrounded by aerial roots (pneumatophores) at low tide near a fishing village of Al Jumail (Jumayl) west of Ruwais. Northern Qatar, June 26, 2015
Small sand crab at low tide in Al Mafyar (Mafjar) area on northern coast (Al Shamal). Qatar, June 27, 2015
Sand crab at low tide in Al Mafyar (Mafjar) area on northern coast (Al Shamal). Qatar, June 27, 2015
Rusty car details at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, August 29, 2015
Mangrove trees (Avicennia marina) in salt marsh at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, December 20, 2015
Mangrove forest (Avicennia marina) in salt marsh at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, December 20, 2015
Mangrove marsh at low tide on Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 2, 2016
Northern tip of Purple Island (Jazirat Bin Ghanim) and ancient fish traps at low tide. Al Khor, Qatar, April 2, 2016
Beachrock and mangrove trees on Purple Island (Jazirat Bin Ghanim) at low tide. Al Khor, Qatar, April 2, 2016
