Rule 4. On the waters of the Grand river, sections 15, 16, 21 and 22, town 8 north, range 16 west, Spring Lake village, Ottawa county, beginning at the entrance to Spring lake and continuing in an easterly direction for a distance of 4,000 feet, it shall be unlawful for an operator of a vessel to exceed a slow-no wake speed when within 200 feet of the north shore.Slow-no wake speed means a very slow speed whereby the wake or wash created by the vessel would be minimal.
Mich. Admin. Code R. 281.770.4