Rusty spring from a car at low tide Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, August 29, 2015
Sea sponge at low tide on Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 28, 2016
Mud flat near mangrove forest exposed at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
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
Point Judith Lighthouse at low tide. Narragansett, Rhode Island, October 31, 2004
Low limestone hills in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 19, 2010
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
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
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
Low limestone cliffs in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 19, 2010
Mangrove trees (Avicennia marina) at low tide south from Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, December 20, 2015
Starfish in Brenton Point in Newport at low tide. Rhode Island, October 25, 2003
Muddy soil of mangrove forest exposed at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
Starfish in Brenton Point in Newport at low tide. Rhode Island, October 25, 2003
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
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
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
Old vehicles at low tide on a beach in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, March 1, 2010
Mud creepers at low tide on Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, May 28, 2016
Mangrove forest at low tide near Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 4, 2015
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
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
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
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
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
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
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
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
