Lewis and Clark Lake is a 31,400-acre reservoir straddling the Nebraska-South Dakota border, offering paddlers 25 miles of water and over 90 miles of shoreline to explore. The lake, impounded by Gavins Point Dam, reaches a maximum depth of 45 feet. Paddlers can access the lake via several public launch sites, though these are limited in number and unevenly spaced.

The lake presents unique paddling opportunities, particularly in its western portion where the Missouri and Niobrara Rivers form an extensive delta. This area features braided channels and vegetated sandbars, providing a distinct experience from the main lake body. Paddlers in the delta should bring GPS for navigation through the complex channel system.

Wildlife viewing is a highlight, with opportunities to spot bald eagles, least terns, and piping plovers. The surrounding bluffs, part of the Niobrara Formation, offer scenic vistas. The lake is also historically significant, located along the Lewis and Clark National Historic Trail.

Safety considerations are paramount. Wind is a constant factor, especially in wider sections, potentially making steering difficult. Storms can develop rapidly on the Great Plains, bringing strong winds, lightning, and heavy rain. Paddlers should monitor weather conditions closely and seek shelter when necessary. The lake's current typically flows at 3-5 mph, influenced by releases from upstream dams.

Zebra mussels are present in the lake, necessitating proper cleaning of equipment before and after use. Wearing water shoes is recommended to avoid cuts from these invasive mollusks. Sedimentation is a significant issue, with approximately 5.1 million tons deposited annually, gradually reducing the lake's surface area.

Primitive camping is generally allowed on islands and sandbars, but paddlers must be aware of private property boundaries and adhere to restrictions protecting wildlife nesting areas. The National Park Service strongly recommends wearing a life jacket at all times and advises against solo paddling.