A sculptor works on a sand sculpture of “The Thinker” during preparations for the FIESA 2009 International Sand Sculpture Festival in Pera May 14, 2009. An international team of 60 sculptors will turn 35,000 tons of sand into sculptures spread over 15,000 square metres (161,600 square feet) for the festival, which opens to the public on May 22. REUTERS/Jose Manuel Ribeiro (PORTUGAL TRAVEL SOCIETY)