Hydration is non-negotiable. Even in winter, the dry desert air depletes moisture faster than you'd expect. Carry at least three litres of water per person for a day's hiking, more in warmer months.
Dress appropriately. Lightweight, breathable layers are ideal. Loose-fitting, long-sleeved clothing protects against the sun and is also culturally respectful. A wide-brimmed hat and high-factor sun cream are essential.
Footwear matters. Sturdy trail shoes or hiking boots with good ankle support are recommended for rocky and sandy terrain. Sandals are best saved for the camp.
Respect local customs. Saudi Arabia is a conservative country, and it's important to dress modestly when visiting towns and villages. Outside of dedicated tourist areas, photography of local people should always be done with permission.
Travel documentation. UK citizens can obtain a tourist e-visa prior to travel. It's worth checking the latest entry requirements before booking.