III. Choose the INCORRECT word.The ULTRA race challenge!Are you fit enough to compete in this adventure challenge? The five-day event will attract some of the world’s best athletes! Racing on land and in water, competitors will ...• swim across lakes / beaches / rivers• cycle through an enormous (14) _____.• climb (15) _____.• run over sandy (16) _____.• swim five kilometres out in (17) _____.• sail around (18) ____