The historic Ghazi Mustapha Fortress in Houmt Souk, Djerba, offers a captivating glimpse into Tunisia's past with its ancient walls and panoramic sea views. While largely accessible on foot within Houmt Souk, visitors should be prepared for uneven terrain and stairs, making it less suitable for full wheelchair accessibility, especially on upper levels. The fortress can be explored independently, though a local guide might enrich the historical understanding. It is generally open year-round, with summer visits best in cooler hours due to heat, and typically closed on Mondays. The approximate entrance cost is 8-10 TND, and a typical visit duration is 1-2 hours, allowing ample time to explore the grounds, enjoy the views, and see the small onsite museum, making it a great addition to a Houmt Souk itinerary.