The Regional Observatory of Alpine Lakes (ORLA), located in the Château d'Annecy, occupies more precisely the Tower and the "Logis Perrière". This place is dedicated to the study of alpine lakes, notably through various exhibitions: archaeology of the first lake stands, aquariums of fish typical of mountain lakes, models of Lake Annecy and its historic boats, as well as traditional fishing tools and presentations on local birds. These elements illustrate the biodiversity and human history associated with lakes.
ORLA also plays a crucial scientific role in monitoring alpine lakes, facing major environmental challenges. Nitrate and phosphate pollution, as well as the risks associated with the disposal of ammunition, threaten these fragile ecosystems. Global warming exacerbates these pressures, affecting the temperature, level and seasonality of lakes, while their fauna, particularly bacterial ones, remains poorly known. The Observatory thus participates in monitoring and awareness-raising programmes.
Integrated into Annecy Castle, an iconic historic monument, ORLA is part of a heritage and scientific approach. Permanent exhibitions, such as the lake model or aquariums, aim to educate the public on contemporary ecological issues. The site also collaborates with citizen science initiatives, involving residents in preserving these unique natural environments.
Online resources, such as links to partner universities (e.g. Savoie Mont Blanc University), highlight the academic anchor of ORLA. This hybrid place, both museum and laboratory, reflects an interdisciplinary approach to protecting alpine lakes, while valuing local heritage. Its installation in a medieval castle also strengthens the dialogue between history and environmental sciences.
