Abstract: A recreation deck includes a plurality of inlay foundation boards. Each inlay foundation board has corresponding and alternately disposed fastening assemblies at two adjacent sides thereof, such that a recreation deck is assembled by joining the fastening assemblies. Each inlay foundation board also has a recess at a surface thereof, so as to allow a surface of an assembled to be formed with a recessed recreation plane for arranging platforms of diverse recreation activities. Each inlay foundation board further has various indentations near a periphery of the recess, and apparatus of different recreation activities can be placed in the indentations. The recreation deck according to the invention is a structure provides practicability like occupying minimal space as well as offering simple assembly, easy portage and usage adaptations.