Only on foot. The 'streets' are of soft sand and tough going sometimes. Stick to the sides of the tracks where its not so soft and wear something on your feet, because the sand can get unbearably hot during the day, and "Bicho do Pe" a parasitic worm that burrows into the skin of your feet not really harmful and easy to cure, but rather uncomfortable is not entirely uncommon but you shouldn't get paranoid about it.