Torre Tavira, Cadiz

You need to reserve your tickets in advance as the numbers are limited but some people did turn up without doing so and were able to go inside. We went in earlier than our reserved time. The tower is very interesting with some good views on to but for me the most interesting thing was the Dark Room and the camera. The guide can be in English at certain times but mainly in Spanish showing you how the camera works and identify buildings and places of interest in the city. Entry was €7 each with the Dark Room tour. Better views can be seen from the Catedral tower.

a charming place to visit. there are regular guided tours and it is worth going on one as it's the only way to see the telescope in action and the "tour" of the city is interesting and fun with the history presented in a very light touch way. it is a bit of a walk up but it is worth it if you can manage it.