Travellers to Mekkah must ensure that their passport is valid for at least six months from the date of entry. Visas are required for most visitors, so it's advisable to check the specific requirements for your country of residence with the Saudi Arabian embassy or consulate. Additionally, it's important to stay updated on any travel advisories or entry restrictions, and consider relevant vaccinations before travelling to Mekkah.
When visiting Mecca, it can be helpful to learn a few basic Arabic phrases such as 'Marhaban' for hello, 'Shukran' for thank you, and 'Wayn hammam?' for where is the bathroom. Books or language apps like Duolingo can be helpful resources for learning basic Arabic words and expressions.