The King Fahd Bin Abdulaziz Al Saud Mosque in Gibraltar is a significant landmark and a beautiful example of Islamic architecture. Visits are generally welcome to people of all faiths, but it's advisable to dress modestly and be respectful. The mosque is generally accessible, but it's best to confirm specifics beforehand if you have mobility concerns. You can explore the mosque independently, taking in its design and peaceful ambiance. A typical visit duration is around 30-60 minutes. There are usually no seasonal restrictions, but be mindful of prayer times when planning your visit. Admission is usually free, though donations are appreciated. Given its location in Gibraltar, which has a Mediterranean climate, comfortable walking shoes are recommended.