Best natural monuments in Biotop Kalterer See - Biotopo Lago Di Caldaro include a diverse range of natural features, from the largest natural lake in South Tyrol to extensive wetlands and unique geological formations. This protected area, part of the European 'Natura 2000' network, is renowned for its rich biodiversity and picturesque landscapes. It offers a variety of experiences, including birdwatching, hiking, and observing microclimates. The region's natural monuments provide insight into its ecological significance and historical connection to the…
Last updated: May 24, 2026
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Cycling in Biotop Kalterer See - Biotopo Lago Di Caldaro
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Hiking in Biotop Kalterer See - Biotopo Lago Di Caldaro
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Mountain Hikes in Biotop Kalterer See - Biotopo Lago Di Caldaro
Today, Lake Kaltern is heavily influenced by humans: especially on the west and east banks, there are bathing establishments, campsites, restaurants and commercially used areas that lead to a burden on the natural environment. This makes this quiet zone on the south bank all the more important. It is a nature conservation project in which two ponds and bays were built in the reeds. These are intended to provide new habitats and nesting places for water birds and spawning grounds for fish. Source: https://www.kalterersee.com/de/highlights/natur-landschaft/der-kalterer-see/biotop/
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This extensive reed belt on the southern shore of the lake provides shelter, food, spawning, resting and breeding grounds for aquatic insects and birds, amphibians and fish. Scientists have counted over 100 species of birds in this wetland, including many migratory birds. Source: https://www.kalterersee.com/de/highlights/natur-landschaft/der-kalterer-see/biotop/
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This reed area is the only large habitat of this type between the Reschen Pass and Verona and is located at the fork of the most important bird flight routes. This is why fish and purple herons, ruffs, snipes, lapwings, black terns, ospreys, cranes, cormorants and white storks appear here again and again. Source: https://www.kaltern.com/de/biotop-kalterer-see.html
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When the weather is nice, Lake Kaltern is a great destination for the whole family. In addition to swimming and pedal boating, you can also play a round of mini golf.
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The path around the lake is 7.5 km long and you should plan on between 2 and 3 hours. Along the way you will learn a lot about the country, the people, the origins, location and cultivation of this unique landscape and about Lake Kaltern. On the east bank the lake is bordered by the Mitterberg nature reserve, on the west bank the Mendel Mountains rise and in the south there is the wetland biotope with small lakes and a viewing platform from which you can observe the diverse bird life. On the north bank there is a hotel with a lakeside terrace, a lido, a campsite and a rental shop for sailing boats, pedal boats and SUP.
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A wonderful view of Lake Kaltern, "great colors - great lights" and a fantastic mountain backdrop. A really great tour through a wonderful landscape.
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Beyond the well-known Lake Kaltern, which is the largest and warmest natural lake in South Tyrol, visitors should also explore the extensive Reed Belt at the southern end of Lake Caldaro. This area is a vital wetland habitat and a nesting place for over 100 bird species. Another unique natural phenomenon is the Ice Holes, where cold air emerges from crevices, often leading to ice formation even in warmer months.
Yes, the region is excellent for birdwatching, particularly at the Reed Belt, which is part of the Kalterer Lake biotope. This area serves as a crucial habitat and resting stop for numerous bird species, including migratory birds like cormorants, grey herons, and white storks. An observation tower and a nature experience trail with a wooden pathway allow for undisturbed viewing.
Around Lake Caldaro, you'll find a diverse landscape. The lake itself is surrounded by vineyards and fruit orchards. The western shore features blackthorns, almond trees, and willows, while the southern part includes moors and swamps with black and silver poplars. The eastern lakeside boasts a downy oak forest, home to plants like Solomon's seal and liverleaf.
Absolutely! Many natural monuments in the region are family-friendly. The Frog pond, water turtle footbridge - Kaltern biotope offers a nature adventure trail with wooden walkways, perfect for families to observe frogs, amphibians, and birds. The Birdwatching Tower is also a great spot for all ages to learn about local wildlife.
The best time to visit depends on your interests. For swimming and water sports, summer (May to September) is ideal, as Lake Kaltern reaches up to 28°C. Spring is particularly enchanting for nature lovers, as the Spring Valley transforms into a vibrant display of early blooming flowers. Birdwatching is excellent during migration periods in spring and autumn.
Yes, the region is home to the fascinating Ice Holes (Eislöcher). These are crevices where cold air emerges, creating significantly lower temperatures and often leading to ice formation even during warmer months. It's a remarkable example of microclimates and geological activity.
There are various hiking routes available. For example, you can find moderate mountain hikes like the "Rastenbach Gorge Waterfall – View of Lake Caldaro loop" or the "Lenzhof Shrine – Grauner Kirchweg loop." For more options, explore the Mountain Hikes guide for the region.
Yes, the area offers excellent opportunities for both running and cycling. You can find running trails such as the "Lake Kaltern – Apple Orchards of Kaltern loop." For cycling, there are gravel biking routes like the "Vineyards at Lake Caldaro – View of Lake Caldaro loop." Check out the Running Trails guide and the Gravel Biking guide for more details.
While not strictly within the immediate lake biotope, the village of Magrè is home to the Oldest Domestic Vine of South Tyrol, planted in 1601 AD. This ancient vine, climbing the walls of a village building, represents a living piece of history and highlights the region's long-standing viticultural tradition, connecting human culture with the natural landscape.
The Spring Valley (Frühlingstal), located between Appiano and Caldaro, is renowned for its spectacular flower carpet. Due to beneficial climatic conditions, it boasts a rich variety of early blooming flowers, transforming into a vibrant display of blossoms particularly in spring. It offers a delightful experience for nature lovers and photographers.
Visitors frequently praise the stunning panoramic views, especially those of Lake Kaltern with the Castelchiaro ruin in the backdrop. The rich biodiversity, particularly the birdlife in the Kalterer See Biotopes, is also a major draw. Many appreciate the tranquil setting and the opportunity to connect with nature through walking, hiking, and cycling amidst vineyards and orchards.


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