Microsoft Flight
38 Achievements
1,275
Xbox 360
Liquid Airstrip
Rivers can make excellent landing spots as long as you stop over dry ground.
25
How to unlock the Liquid Airstrip achievement in Microsoft Flight - Definitive Guide
You need to land on water, then taxi to land in the Carbon Cub. You will get this upon completing the McGrath Ski Landing Challenge. See "Alaska Landing Master" for more information.