Tucked away at 1,815 m above sea level in the upper reaches of the Green Javorová Valley in the Slovak High Tatras, the Green Javorová Tarn is one of those rare mountain lakes that feels truly untouched. No marked trails lead here, no crowds gather on its shores — just an oval pool of water cradled by alpine meadows and scree slopes, holding its silence with quiet confidence.

The tarn covers around 0.75 ha under normal conditions, but at high water levels it can swell to nearly 1.45 ha, stretching to 168 by 118 metres. Unusually, it has no surface inlet or outlet — all water drains underground into the Zelený potok stream. This hidden hydrology means water levels can vary dramatically between seasons. Spring brings a long-frozen surface that slowly gives way to shimmering green water, while summer reveals the full drama of the surrounding rocky terrain. It is a place that rewards patience and proper permits far more than it rewards impulse.

• The entire Green Javorová Valley falls within a strict TANAP nature reserve. There are currently no official tourist trails leading to the tarn. Access requires a permit from the Slovak Tatra National Park administration.

• The valley is a strictly protected TANAP reserve — entry without a permit is prohibited.
• No marked hiking trails lead to this tarn.
• The lake remains frozen for extended periods in spring, limiting early-season access.

In 1885, a hunting lodge belonging to Prince Christian of Hohenlohe stood on these very shores — today nothing remains of it, and the landscape has reclaimed every trace of that aristocratic retreat.