Pop-up play set

A play set having a main panel section and a pair of side panel sections, each of which is pivotably connected to tile side lateral edges of the main panel section. When the play set is in a first orientation, the main panel section and the pair of side panel sections are oriented generally co-planar to each other such that the upper main surface and upper side surfaces define a play surface having a perimeter, and when the play set is in a second orientation, the side panel sections are adjacent each other and in a plane parallel to the main panel section to define a play set case. When in the first orientation, one of the panel sections includes an elongated member extendable therefrom in a telescoping manner to define an additional play surface outside the perimeter of the main panel sections and side panel sections.