Revellers smile as sparks from the "Fire Bull", a man carrying a metal structure loaded with fireworks, fly on the fourth day of the San Fermin festival in Pamplona July 9, 2013. Visitors to the nine-day festival, depicted in Ernest Hemingway's 1926 novel "The Sun Also Rises", take part in activities including The Running Of The Bulls, an early morning half mile dash from the corral to the bullring alongside six bulls destined to die in the afternoon's corrida. This is followed by processions of giant traditional figures, concerts, firebulls, fireworks, and large doses of eating, drinking, dancing and late nights. REUTERS/ Vincent West ( SPAIN/ )