I claim the ornamental design for a canopy for an enclosure for recreational structure, as shown and described.
FIG. 1 is a perspective side view of a canopy for an enclosure for a recreational structure according to the subject matter disclosed herein; and
FIG. 2 is a top view of the canopy for a recreational structure shown in FIG. 1 according to the subject matter disclosed herein; and,
FIG. 3 is a bottom view of a canopy for an enclosure for a recreational structure having a vent and a vent cover according to the subject matter disclosed herein.
The broken line showing is included for the purposes of illustrating and forms no part of the claimed design.