Waterfall Seaplane Base (KWF/POKW) is a small seaplane facility located in Waterfall, a remote community on Prince of Wales Island in Southeast Alaska, United States. The base serves as a critical air access point for this isolated area, where road connections to the broader transportation network are extremely limited. The facility primarily supports floatplane and seaplane operations typical of rural Alaska, providing essential links to nearby communities, fishing lodges, and commercial enterprises. Waterfall is historically associated with a former salmon cannery that was converted into a fishing resort, and the seaplane base supports visitors and supplies to that operation. Given its remote location and small scale, the base handles minimal scheduled traffic and is largely oriented toward charter and on-demand air taxi services common throughout Southeast Alaska.