Percent Map travel guide (2026-09-30): Hidden Lakes and Alpine Treks Await

Last summer, I explored Haldensee in Austria's enchanting Tannheimer Tal valley. Despite the chilly lake waters, hiking trails up the mountain provided breathtaking views and cozy refueling stops at traditional hüttes serving hearty meals. Descending through a serene landscape dotted with grazing cattle, each step felt like stepping into a postcard-perfect Alpine scene. For those planning a September adventure, this region's central Eastern Alps offer a balance of vibrant fall foliage and cooler weather, making it ideal for a tranquil mountain retreat.