Lago Serrano is a glacially-fed lake in the Magallanes and Chilean Antarctica Region of Chile, situated within the Bernardo O'Higgins National Park. The lake is part of a significant paddling route that connects to the Serrano River, which flows from the Tyndall Glacier and the Southern Patagonian Ice Field. A primary multi-day kayaking route involves paddling from Lago Grey, through the Río Grey, and into Lago Serrano before continuing down the Serrano River toward the Última Esperanza Sound. This route covers a total paddling distance of approximately 42 kilometers, or 16 miles, with the paddling time on the lake and river sections typically taking 6 to 8 hours per day. A notable feature along this route is the Serrano waterfall, which requires a short portage of about 50 meters where kayaks must be carried. The overall character of the experience is defined by remote, rugged Patagonian wilderness, with paddlers navigating among icebergs and in view of glaciers like the Serrano and Balmaceda Glaciers. The journey offers exceptional scenic beauty, with the surrounding mountains and ice formations providing a dramatic backdrop. The best season for paddling is during the Southern Hemisphere summer, with commercial tour operations typically running from September through March. The water is cold year-round due to its glacial source. The area is accessed via the town of Puerto Natales, with tours often including boat transport on the Última Esperanza Sound to reach starting points. Wildlife sightings can include native bird species, and the area is part of a major national park, so visitors should expect regulations aimed at preserving the pristine environment.