A distant relative of the elephant, mastodons trudged the earth in prehistoric times and a geological echo of these herds can still be seen in Saudi Arabia today. An impressive selection of what locals claim to be their fossilized bones can be seen peppering the ceiling of the Mastodon Cave, which is an almost two hours’ drive north of Jubail. The sandstone chamber is home to an array of animals, including bats, rock doves, owls, wolves, foxes and more, making it a paradise for wildlife watching. You’ll need a guide to help you find it, as signposts are scant, but it’s well worth the trip and there are plenty of beautiful camping spots along the way.