i can see where you are coming from with the above reply, but, i dont agree! firstly, you state that many older tourists rely on their cars..... no, the majority of them dont hire cars. they stay at the hotel los gigantes and rarely step out of it!! secondly, the day trippers that stop at the mirador dont have much choice in the matter if it is a preorganised stop!
BUT if there was a little train running from the mirador, down to los gigantes harbour collecting all the elderley, day trippers, families along the way, straight into the harbour where they can appreciate the view and they could have tapas, meals and drinks on the marina side without choking on car fumes, dodging the cars as they try to do 3 point turns...etc...etc.. wouldnt it be lovely? and think how busy the bars would be, not just little italy, and, the day trippers would perhaps come back for a week or 2 the following year and spend more money in the bars and restaurants.
i think that a little train is just what is needed!