JMW Turner, the 19th century Romantic English painter, travelled around Switzerland on several occasions in search of spectacular motifs. While doing so, he visited Lucerne repeatedly to study the unique interplay of light and weather, lake and mountains here, and captured his impressions in sketches and vibrant watercolours. These observations and depictions both of the sea, during the crossing to the continent, and of the Alps were of major importance for Turner - in them the beauty and dangers of nature combine directly with the theme of the sublime, which was of fundamental significance for Romanticism.