Distressed sailors and struggling swimmers. If you are in trouble at sea - they will be there to help you.
And this summer Kent and Essex had the UK's busiest coastal RNLI lifeboat stations - at Southend on Sea and Ramsgate.
But with the worst summer on record for 100 years - why have call outs soared in some areas? Sarah Saunders has been finding out.
More top news
Simon's Blog - Bugs
Trains between Oxford and Didcot will be replaced by bus services for more than two weeks while engineers raise the track.
Tuesday night's forecast for the west of the region