Double Lake (Dvojno jezero) comprises two interconnected lakes.
The Triglav Lakes Valley (Slovene: Dolina Triglavskih jezer) is a rocky hanging valley in the Julian Alps in Slovenia, below the sheer sides of Mount Tičarica and Mount Zelnarica southwest of Triglav. The valley is also called the Seven Lakes Valley (Dolina sedmerih jezer), although there are ten and not seven lakes in the valley. It is above the tree line and is geologically Alpine karst; therefore it has also been termed the Sea of Stone Valley (Dolina kamnitega morja).
The lowest lake is Black Lake (Črno jezero) at an elevation of 1,294 metres (4,245 ft) above sea level; it is above the rocky slope of the Komarča rock face. The Alpine newt (Ichthyosaura alpestris), endemic to the Alps, lives in it. Below Mount Tičarica (elevation 1,676 m (5,499 ft)) there are two interconnected lakes known as Double Lake (Dvojno jezero). At an elevation of 1,838 m (6,030 ft) lies Big Lake (Veliko jezero) or Ledvica Lake (Jezero v Ledvici). This is the largest and the deepest of these lakes. The highest is Podstenje Lake (Jezero v Podstenju), which is located at an elevation of 1,993 m (6,539 ft).
There are two mountain huts in the Triglav Lakes Valley. The Hut by the Triglav Lakes (Koča pri Triglavskih jezerih; 1,683 metres or 5,522 feet), owned by the Ljubljana–Matica Mountaineering Club, is located at its southern edge, whereas the Central Sava Valley Hut (Zasavska koča na Prehodavcih; 2,071 metres or 6,795 feet), owned by the Radeče Mountaineering Club, is located at its northern edge. They are two hours apart. They may be accessed from Bohinj over Komna Plateau (5 hours to the Hut by the Triglav Lakes), from Bohinj over Mount Komarča (3 hours), from Blato Mountain (3:30 hours), from Trenta (3 hours to the Central Sava Valley Hut, and over Trebiščina Mountain (3:30 hours to the Central Sava Valley Hut).