Wadi Rum, often called the 'Valley of the Moon,' is a breathtaking desert wilderness in Jordan, famous for its dramatic sandstone mountains, natural arches, and ancient rock carvings. It's best experienced via guided 4x4 tours, which are highly recommended over solo exploration due to the vast, challenging terrain and the insights provided by local Bedouin guides; navigating independently without expert knowledge is not advisable. The area is generally accessible by car/taxi to visitor centers, with 4x4s essential for further exploration. The ideal visiting seasons are spring (March-May) and autumn (September-November) to avoid extreme summer heat or winter cold, though it's open year-round. A typical visit duration is one to two days, usually including an overnight stay in a Bedouin desert camp to enjoy stargazing. Costs vary widely but budget around $70-$150+ per person for an overnight camp stay with a tour, plus a modest entrance fee of about 5 JD. Remember to bring water, sunscreen, and layers of clothing.