Rule 5. On the waters of the entire channel in Royal Shores subdivision in the southwest side of Lake Columbia, commencing from a line starting at the northeast corner of lot number 45 to the southeast corner of lot number 68, thence northwesterly, thence northeasterly, thence easterly, to a line at the end of the channel, from a point which is the northeast corner of park lot number 2 to the southeast corner of park lot number 3, in Royal Shores subdivision, part of the east 1/2 of section 33 and part of the west 1/2 of the southwest 1/4 of section 34, town 4 south, range 1 east, township of Columbia, county of Jackson, state of Michigan, no operator of any motorboat shall exceed a slow-no wake speed.
Mich. Admin. Code R. 281.738.5