Prior reviews have covered the who, what, when, where, and why of this place. So I just want to add a couple notes about the map and website.
According to the Andalucia Tourism website, the official web address for Tarifa's Tourism office is aytotarifa.com/Turismo, however it appears this has not been updated for some time.
The current (as of Feb 2018) town maps are produced by the business council, and on them, they direct you to their website todotarifa.com, for more info. There, they do offer tourism info, but also a lot of ads for local businesses. The site is obviously very helpful for local shopping and dining, but you need to navigate a little to get to the historical sites, which exist, but aren't as obvious on there, as the for-profit businesses.
The maps are a handy size, but this makes them a little crowded. I have posted photos. One of the most exciting sites, IMO, is Isla de Tarifa (Isla de las Palomas), and it's cut off at the bottom! There is an arrow pointing to where it is, but come on, this is essential info.
For historical sites, Tarifa's coverage on the Andalucia tourism webpage is more helpful (http://www.andalucia.org/en/destinations/provinces/cadiz/municipalities/tarifa/), as well as Tarifa's portion of Cadizpedia (https://cadizpedia.wikanda.es/wiki/Tarifa).
You will find valuable touring info on all sites, but those last two were most helpful to us. read more