On June 2, 1431 Querini and his crew through the fault of the helmsman touched a rock that had surfaced due to the low tide and broke the rudder. They are then forced to stop in Cadiz several days to repair the failure. They enter through the Puerta del Mar still visible in Cadiz today.
Helpful links
Tourist information about Cadiz: https://www.spain.info/en/destination/cadiz/