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18 July 2012, 06:00
Heart went along to Stevenage to meet the St Kitts & Nevis Olympic team who are staying in Watford before heading over to the Olympic Village.
The small Caribbean islands only started appearing in the Olympics in 1996.
Heart spoke to 100m sprinter Kim Collins about why his event is so special:
He's already competed in four Olympic Games but is yet to win an Olympic medal- despite this, he's feeling confident: