He spent the rest of his time enjoying himself , and ordering some important public works , such as discharging into the Danube the superfluous waters of Lake Pelso , and cutting down the immense forests around it . . He spent the remainder of his years enjoying himself and ordering some important public works , such as discharging into the Danube the superfluous waters of Lake Pelso , and the cutting down the immense forests that encompassed it .