SOUTHERN Europe is teeming with tourists at this time of the year. The Med is mayhem, the Riviera rife with crowds. Trains, planes, hotels, restaurants and monuments are packed as people from all over the world flock to soak up the sun in the south of France, Italy or the Greek Islands. Then there are places like Rasisce. Located on Korcula, one of 1185 islands in Croatia and reputedly the birthplace of Marco Polo, the tiny seaside village of Rasisce is a rare gem on which to stumble in bustling peak season southern Europe.