Not content with running any old 26.2 mile marathon, a Newhaven Lifeboat volunteer crew member is running 50 miles along the South Downs Way instead.
The super fit athlete has been training hard since September last year and running along the chalky South Downs Way throughout the winter.
Alvaro Rodriguez has been running four or five times a week and clocking up an impressive 150 miles a month to prepare for this gruelling race, most of which is cross country.
Money he raises by taking part in the Centurion South Downs Way 50 will go to Newhaven Lifeboat and the Cancer Charity Yes to Life.
Alvaro, who has been a volunteer crew member since 2010, said: “I have been training really hard over the past months but I know it’s for two worthy causes.
“The RNLI, who saves lives at sea, and Yes to Life, which is a Cancer support charity, both of which do fantastic work.”
Alvaro will take part in the challenging race on Saturday April 5.
He has been braving rain, high winds and even hail during his training for this event.
This marathon is 80 per cent cross country, running along tracks and across fields.
The race will begin in Worthing and finish in Eastbourne, beginning with six miles of chalk footpaths and bridleways, climbing up to join the South Downs Way at Chanctonbury Ring and finishing 50 miles later in Eastbourne.
One major step in his training schedule was competing in the Black Forest Marathon in Germany, which included muddy trail runs with ascents of up to 500m.
He will climb a total of 1,460m during the race.
The course record for this event is held by Mark Perkins who completed the event last year in six hours, 55 minutes and 37 seconds.
It is being organised by Centurion which stages ultra marathons across the UK.
Newhaven Lifeboat is run by volunteers who keep people safe at sea.
It relies almost entirely on donations, with individuals and the Lifeboat Society fundraising throughout the year to keep this vital service going.
If you would like to sponsor Alvaro for his efforts you can visit: http://www.justgiving.com/Alvaro-Rodriguez-RNLI