SS had the following:
"Harry Potter stars Rupert Grint and James and Oliver Phelps are currently in Barcelona, Spain, where Oliver, Rupert, and their friend Stuart Manison are participating in the Barmy to Barcelona 2010 Wacky Rally, proceeds from which will help benefit the RNLI, an organisation that provides "24-hour lifeboat search and rescue service around the coasts of the UK and RoI, as well as a seasonal lifeguard service on many of the busiest beaches in England and Wales." Oliver's rally team is "The salty sea dogs." The twins have previously given support to the cause the last couple years."
There is also a video: