Considering the Hotel Thalassa Madhia in Mahdia?
A VT member wrote the following comment about visiting Mahdia:
Fatimid Port and Lighthouse (Cap d'Afrique) by maykal
Past the Borj, several paths will take you around the headland, called Cap d'Afrique. Through the cemetery, you'll first pass the ruins of a Fatimid port, now used as a harbour by a few tiny fishing boats. A pile of bricks here and a clump of ruins there declare that there was once something more here, but now the place is overrun with sheep, local kids (who dive off the piles and clumps into the sea) and camera-toting lobsters on day release from the zone touristique. Don't let that put you off, as it is a picturesque place to spend an hour or two.