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Safety is vital for mayor's 'swimmable rivers' plan, City Hall warned
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Foam in Thames 'was natural occurrence' says EA as sewage row grows
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Porpoise spotted in River Thames at Twickenham
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House with its own jetty on hidden Thames creek on for £3.45 million
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Flood alert for Thames in west London as capital hit by downpour
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Stranded minke whale in River Thames put down
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Stranded River Thames whale to be ‘put to sleep’
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Small whale stranded in River Thames unlikely to survive, rescuers say
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Small whale freed after becoming stranded still in River Thames
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River Thames frozen over at Teddington Lock as UK goes sub-zero
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