X-Plane 9 And 10 Scenery--Lake Chelan Airport (S10), Washington (WA), USA. Known as "Washington's Playground," the Lake Chelan region abounds in natural beauty with countless recreation and vacation opportunities. Located in the heart of apple country, Lake Chelan is Washington's largest freshwater lake at 55 miles long and, at its deepest, nearly 1500 feet deep! Lake Chelan Airport is your "virtual gateway" to one of Washington State's premier tourism hotspots. Leave "runways follow terrain contours," on as the approaches here are really fun, especially for runway 2! Requires OpenSceneryX. By Shawn Weigelt.