crown green bowls

Crown Green Bowls (or crown green) is a code of Bowls played outdoors on a grass or artificial turf surface known as a bowling green. The sport's name is derived from the intentionally convex or uneven nature of the bowling green which is traditionally formed with a raised centre known as the crown. Crown Green Bowls is played in the Midlands and Northern half of England, and North Wales.

Bowls or lawn bowls is a sport in which the objective is to roll biased balls so that they stop close to a smaller ball called a "jack" or "kitty". It is played on a bowling green which may be flat (for "flat-green bowls") or convex or uneven (for "crown green bowls"). It is normally played outdoors (although there are many indoor venues) and the outdoor surface is either natural grass, artificial turf, or cotula (in New Zealand).