A stone cut in the shape of a sugar loaf, which he gripped between his feet while a rope connected it to his boat, served to lower him more quickly to the ocean floor. This was the extent of his equipment.
El hombre se sumergía y ascendía sucesivamente. Una piedra entre los pies ligada a su bote por una cuerda constituía todo su equipamiento técnico para descender más rápidamente al fondo del mar.