Explore the riverbanks and valleys near Darjeeling to combine trekking with water-based activity. Numerous hiking paths in the area pass alongside rivers and streams, providing opportunity for a cool plunge.
While not in Darjeeling itself, Mirik is close by and provides access to Sumendu Lake boating. Rowboats and paddle-boats are available for rent so that you can relax on the lake while surrounded by gorgeous greenery.