Yeah - toll road is best. Only 5 € plus change. Negotiating the ring road (which isn't a complete ring!!!!) - well, going anti-clockwise is better but involves a small detour, albiet fairly straightforward. Therefore, for the sake of making it simple, as your friends come into Seville from the Madrid road N4, they'll reach KM 540-ish (remember that all KMs are indicated on motorways to make life easier). They'll see a sign giving the options Avenida Kansas City, Sevilla Centro Ciudad and SE-30. They take the SE-30 (I think it indicates Cadiz as well but can't remember) which goes in a clockwise direction. They stay on it for about 5km until exit 9 "Cadiz/Puerto Este" - they can't miss it as it is just before the big bridge. Traffic tends to accumulate here so make sure they stay right well in advance so they can turn off without getting caught. Once they've turned off they follow all signs to Cadiz. Easy!!!

Fantastic - Thanks alot Fortaleza (and everyone else who contributed) what a great place this board is