My favorite season of the year at Lake Achensee is definitely autumn, because the nature will show you all the colors at its best. The temperatures aren’t that hot anymore so that you can only stay at the lake but rather warm and pleasant - ideal for discovering the area. Absolutely recommendable in autumn is the ascent of the mountain with the “Karwendel-Bergbahn” (mountain railway) with a following hike to the “Bärenkopf” (mountain) or a breathtaking flight with the “Skyglider Air Rofan” in Maurach.
Also beautiful und energizing is a hike at the especially clear and refreshing autumn air through the quiet valley of Tristenau or a hike to the “Gern-Alm” (Gern alp) and the related game enclosure. A magnificent view awaits you from the Feilkopf (mountain) and you can also enjoy the last warming sunbeams on a boat-trip around Lake Achensee before you stop by at the “Gaisalm”.