To see the 8 main sites of Petra (The Siq, The Treasury, The Monastery, Theatre, Royal Tombs, Colonnade, High Place of Sacrifice, and the Treasury viewpoint) you'll have to have a long day. Alternatively, plan to spend 2-3 days exploring Petra.
Is Wadi Rum worth it?
If you're vacationing in Israel or looking for an 'off-the-beaten-path' trip, then there's no better place to head to than Wadi Rum, in Jordan. Located in the south of the country, close to the Saudi Arabian border, you'll find an astonishing landscape that will, in all probability, take your breath away.