Nine teams of people are competing against each other to pull a 14-tonne, 11-and-a-half metre lifeboat, a quarter-of-a-mile, in the quickest time possible.
It is all to raise as much money as possible for the RNLI.
The lifeboat will sit on a low loader during the event, creating a massive 37 tonnes for the teams to pull through the London park.
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A 15-year-old school boy has been stabbed 'five or six times' on his first day back at school in north London after the summer holidays.
Today's showers should clear overnight - and tomorrow will be more settled, but temperatures still feeling cool.
The pair have been poring over old maps and records in their bid to convince the council the warehouse should not be converted into flats.