Tumba Peak, Mountain summit at Sintiki Municipality, Greece.

Tumba Peak rises 1,880 metres on the main ridge of the Belasica mountains, west of Lozen Peak and east of Sechena Skala Peak. It has a dome shape with steep northern and southern slopes, is made of metamorphic rock, and is covered with subalpine grass vegetation.

During World War I a monument to fallen soldiers of the Bulgarian 11th Macedonian Infantry Division was built on the summit. Greek troops destroyed it on 17 August 1926. In 2022 a memorial fountain was unveiled nearby at the locality Shtabo.

Since 2001, an annual gathering called 'Balkans Without Borders' brings people from Bulgaria, Greece, and North Macedonia to meet at this location. The event strengthens connections between communities across the three nations.

Hikers can reach the peak from several starting points including the Bulgarian villages of Klyuch and Skrat or the Macedonian village of Smolari. Each route offers different difficulty levels and landscapes.

A border pyramid numbered 1 stands on the summit, marking the tripoint of Bulgaria, Greece and North Macedonia. The peak also gave its name to Tumba Ice Cap on Graham Land in Antarctica, and to a street in Sofia's Hipodruma quarter.