A baby was left stranded on Chiswick Eyot with it's mum and grandma after being cut off by high tide.
Chiswick Royal National Lifeboat Institute (RNLI) launched a rescue after the family became trapped on the piece of land near Hammersmith Bridge at 6.50pm on Sunday.
The trio were all safely returned to dry land at Chiswick Pier after they used a mobile phone to contact the Coastguard.
Wayne Bellamy, Chiswick RNLI station manager, said: "There's a lot of good messages in this story. They knew to make the 999 call in good time before there was a panic.
"They didn't let the situation degenerate, they knew what to do, that's reassuring to me."
The Chiswick rescue was one of a number of calls received by the London Coastguard on Sunday night.
Steve Carson from London Coatsguard said: "It was a busy evening for search and rescue units on the Thames, it certainly highlights the importance of having one central coordination centre for the command and control of dispatching the various marine units that are available to us here on the Thames.
"People are reminded to check the tides when venturing out to those areas on the Thames that are accessible at low water.
"You can very quickly become cut off. If you see anyone in trouble on the water, dial 999 and ask for the coastguard."