It wouldn’t be a visit to the lake district without spending some time on the water. Lake Windermere is the largest lake with lake cruises as well as private boat hires. At some of the smaller lakes, like Ullswater, you can try out water sports like wakeboarding or SUP boarding. There is also always the option to swim in one of the lakes or spend the day relaxing lakeside.
There is definitely no shortage of outdoor activities to partake in when visiting Cumbria and the Lake District.