Michael Pitts / Aerial view of cruise ship, M/V Crystal Symphony, passing through the Panama canal, heading towards Mira Flores Locks, Panama 2005 2006
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David Pike / Marsh woundwort (Stachys palustris), close up. Harpers Ponds, near Double Locks, Exeter, Devon. July. Focus stacked image.
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Marie Read / Abstract interpretation of Sandhill Cranes (Grus canadensis) at roost during spring migration in March, Rowe Sanctuary, Kearney, Nebraska, USA. March. Long exposure.
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Gary K. Smith / Hatton locks on the Grand Union Canal with the church tower of St Mary's Church, Warwick in distance. Warwickshire, England, February 2017.
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Gary K. Smith / Hatton locks on the Grand Union Canal with the church tower of St Mary's Church. Warwickshire, England, February.
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Nick Upton / Classic wooden yacht approaching a lock on the Caledonian canal at Gairlochy, Lachaber, Scotland, UK, September 2016.
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Philippe Clement / Village of Cairnbaan situated on the Crinan Canal, Argyll and Bute, western Scotland, UK, September 2016
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Nick Upton / Flight of 16 locks up a steep hill on the Kennet and Avon canal, Caen Hill, Devizes, Wiltshire, UK, April 2014.
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Nick Upton / Flight of 16 locks up a steep hill on the Kennet and Avon canal, Caen Hill, Devizes, Wiltshire, UK, April 2014.
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Nick Upton / Flight of 16 locks up a steep hill on the Kennet and Avon canal, Caen Hill, Devizes, Wiltshire, UK, April 2014.
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Nick Upton / Flight of 16 locks up a steep hill on the Kennet and Avon canal, Caen Hill, Devizes, Wiltshire, UK, April 2014.
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Nick Upton / Narrow boats in a lock on the Kennet and Avon canal, Caen Hill, Devizes, Wiltshire, UK, April 2014.