Rafting is the kind of outdoor adventure that thrives in Sochi thanks to the abundance of turbulent mountain rivers. Rafting is so popular you are unlikely to find a local tour agency that does not offer it. Sochi’s largest rivers, the Mzymta and the Shakhe, with their rapids and sandbars, are considered the best for rafting. Rafting tours are available from May through October. One does not need special physical training to go on a rafting trip. Experienced local guides will give you all the requisite gear, including a life-vest, and will instruct you in safety procedures. One of the "classic" routes is on the River Mzymta, incepting in the Akh-tsu Gorge. It is seven kilometres long and takes an hour.