Tirlgav with an elevation of 2.864 m is the highest mountain in Slovenia and the highest peak of the Julian Alps. It is the centerpiece of Triglav National Park, Slovenia's only national park.

At the top of the mountain stands a small metal structure, the Aljaž Tower, which acts as a storm shelter and a triangulation point. Along with Triglav, it is also a landmark of Slovenia and a symbol of the Slovenes and Slovene territorial sovereignty.

The Triglav Glacier is located below the summit on the karstified Triglav Plateaus, part of the northeastern side of the mountain. Covering over 40 hectares (99 acres) at the end of the 19th century, the glacier had shrunk to 15 hectares by 1946, and after further shrinkage had fallen into two parts by 1992. It now covers an area of only 1–3 hectares, depending on the season.

Mount Triglav is surrounded by deep valleys and can be approached by different climbing routes (the easiest are from Pokljuka or Krma valley, others are from Kot valley and Vrata valley, the longest but the most beautiful is through the valley of Triglav lakes). Most of them demand 2 or even 3 days and involve staying at a mountain hut for the night. If you are travelling between the end of June and end of September, We recommend you to join a group or request a private guided tour.