Niżni Kostur (2055 m a.s.l.) is one of those High Tatras summits that embodies true alpine wilderness — sitting along the main ridge within the Liptov Walls (Liptowskie Mury), it remains entirely off the tourist trail and rewards those who appreciate raw, untouched mountain scenery.

The peak sits right on the Polish-Slovak border and marks a subtle but important shift in the direction of the main ridge — from east (coming from Kotelnica) to south-east (towards Szpiglasowy Wierch). On the Slovak side, grassy and relatively gentle slopes descend into the Ciemnosmreczyńska Valley. On the Polish side, a long and prominent ridge drops towards Czarny Staw lake, separating the Szpiglasowa Kotlinka hollow from the depression below Czarna Ławka pass. The left slopes of this ridge are gentle and grassy-scree, while the right side falls away in steep rock walls. In winter the whole area takes on a serious alpine character — the first recorded winter ascent came only in April 1925.

The peak is flanked by two passes: Czarna Ławka separates it from Czarna Kotelnica, and Niżnia Liptowska Ławka (approx. 2035 m) separates it from Wyżni Kostur.

• There are no marked tourist trails leading to Niżni Kostur from either the Polish or Slovak side. The summit is officially closed to general tourism and can only be visited under specific permitted conditions.

• The summit lies on the Polish-Slovak border within the Liptov Walls area, which is fully closed to tourist access.
• Entry without a permit is prohibited on both the Polish side (Tatra National Park) and the Slovak side (TANAP).

Growing on the rocks of Niżni Kostur is Saxifraga retusa — an exceptionally rare plant recorded in Poland at only a handful of sites, all of them in the Tatras. It is one of the quiet botanical treasures of this wild and seldom-visited ridge.