"Special recreation pool" means a water-containing structure or combination of structures that is not intended for swimming or diving but that is used typically for receiving bathers at the end of long slides, flumes, or chutes, or for artificial surfing and similar use. The term includes wave action pools, activity pools, catch pools, leisure rivers, vortex pools, and interactive play attractions.
N.H. Admin. Code § Env-Wq 1102.56