The Mud Volcanoes in Baku, Azerbaijan are a unique natural phenomenon where mud and gas are pushed up from deep below the Earth's surface to create small volcanoes made of mud. These small volcanoes are found throughout the area and are a popular tourist destination.

The mud volcanoes are caused by the release of methane and other gases from deep underground, which mixes with the mud to create the volcanic eruptions. The mud is typically grey or beige in color and can range in consistency from liquid to semi-solid. Some of the mud volcanoes are as small as a few inches high, while others can reach heights of up to several meters.

The area around the Mud Volcanoes is a protected national park, which is home to a variety of wildlife, including wild boar, gazelles, and wolves. The park is also an important nesting site for a number of bird species.

Visitors to the Mud Volcanoes can hike through the surrounding desert landscape, take a guided tour, or even ride on a specially designed vehicle that can navigate the rugged terrain. It is important to note that the mud can be slippery, and visitors are advised to wear appropriate footwear and exercise caution while exploring the area.