Tumba (Bulgarian and Macedonian: Тумба) is a peak in the Belasica mountains in the region of Macedonia. The peak, in height, lies on Belasica's main ridge, west of Lozen Peak and east of Sechena Skala Peak. A dome-shaped mountain with steep southern and northern slopes, Tumba is covered with low subalpine vegetation and is made of metamorphic rock. Tumba is notable as the point where the national borders of Bulgaria, Greece and the Republic of Macedonia meet. It is the southwesternmost point of Bulgaria and the southeasternmost point of the Republic of Macedonia.