As of 2009, it is the only National Park in Switzerland, though there are plans to create more. It has an area of 174.2 km² and is the largest protected area of the country. It was founded on 1 August 1914, the national holiday of Switzerland. It was one of the earliest national parks in Europe. In the park, one is not allowed to leave the road, make fire or sleep outside the Chamanna Cluozza; the mountain hut located in the park. It is also forbidden to disturb the animals or the plants, or to take home anything found in the park. Dogs are not allowed, not even on a leash. Due to these strict rules, the Swiss National Park is the only park in the Alps who has been categorized by the IUCN as a strict nature reserve, which is the highest protection level.