You can rent a horse drawn carriage with a driver near the cathedral and park across from the cathedral next to the port.  It costs 30 euros for 45 minutes and covers a lot of the waterfront as well as the beachside part of the town.  It is a pleasant ride - the carriages hold up to 4 people, but some are more comfortable for 4 than others.  The price is regulated by the government so all of them should be the same price.   It is a pleasant 45 minute ride, especially at sunset.