From Dobbiaco in Alta Pusteria you can reach the Landro lake in the Landro-Valley. It is already in the Three Peaks Nature Park, so it is a protected area, and the Fanes-Sennes-Braies Nature Park is directly adjacent to its western shore. The magnificent mountain scenery around the turquoise-green Dolomite lake is known far and wide: The view reaches as far as the Cristallo Group in the Ampezzo Dolomites, and near the lake, in the direction of Dobbiaco, is the well-known "Three Peaks View" with a view of the world-famous Three Peaks.
How to reach Dobbiaco/Toblach: https://www.drei-zinnen.info/en/dobbiaco/dobbiaco/contact-and-service/arrival-mobility.html
Also accessible by public transport. The timetables are available on www.sii.bz.it.
Parking places are available.