[custom_adv] Russian President Vladimir Putin has spent the weekend in southern Siberia's mountains. [custom_adv] Photos and video released by the Kremlin on Monday showed Putin walking forested mountains in the Tuva region that borders Mongolia. Putin turned 67 on Monday. [custom_adv] Russia's nature-loving, action-man president has visited the area several times over the past few years, walking up the mountains, fishing and swimming in the area's pristine rivers and lakes. [custom_adv] The video broadcast by Russian television showed Putin walking up the slope and pausing to look at the Yenisei River below and the surrounding mountains. [custom_adv] Defense Minister Sergei Shoigu, the region's native, accompanied Putin on the trip. [custom_adv] Defense Minister Sergei Shoigu, the region's native, accompanied Putin on the trip. [custom_adv] Defense Minister Sergei Shoigu, the region's native, accompanied Putin on the trip.