The best time to go to Alt-Ruppin is during the late spring or early autumn, specifically from May to June or September to October.These months offer pleasant weather with comfortable temperatures, making it ideal for outdoor activities without the peak summer crowds. You'll find the countryside is at its most picturesque, whether with spring blossoms or autumn colours, which enhances the experience of exploring the lakes and forests around Alt-Ruppin.For those who enjoy water sports and swimming, the summer months of July and August are also a good choice, though it can get busier. The lakes are warm enough for a dip, and there are plenty of opportunities for sailing, kayaking, and paddleboarding.