Go for a stroll by the water's edge and breathe some fresh air at Houmt Souq Harbour. It's always nice watching the boats coming and going.
If you're spending a while in Houmt Souk, Houmt Souq Harbour is a good place to start your sightseeing. This place for ships to anchor is one of numerous attractions worth checking out here. El Ghriba Synagogue, Borj El Kbir Fort and Libyan market are also ready to be explored close by.