Kerkuane is one for the true collectors. The landscape is very nice in this part of Tunisia and I even saw some flamingo colonies on the way. Nevertheless, it is a bit hard to justify the combined around 5h drive to get there and back for what you see. The highlights are the bathrooms and a rather primitive mosaic. The rest are very low-level ground walls and a nice sea view. Opening times are very limited, closing at 4pm and closed on Mondays, so plan ahead. Just follow google maps to find the site. There is not much else around and very limited accommodation offers so I would not suggest staying overnight in this area. There are no motorways in this part of the country and many trucks. You will pass several cities, which further challenge your driving skills.