Updated 9 Oct 2026, 3:04 am EDT. Get alerts for Lake Manuka
National Weather Service; National Interagency Fire Center; U.S. EPA CyAN satellite; Michigan DHHS; Michigan DNR. Weather, warnings, fires and satellite refresh when you open the page (checked at most hourly).
Michigan DNR survey, fetched 7 Oct 2026. Not for navigation.
164 acres · deepest 27 ft (measured) · shoreline about 4.5 mi · clarity about 12 ft
Lake Manuka is the 6th largest of the 92 named lakes of 10 acres or more in Otsego County. By Michigan DNR survey it is the 23rd deepest of the 41 with a measured depth. Its water is clearer than 40 of the other 80 lakes in the county with satellite clarity readings. Its shoreline measures about 4.5 miles along the state outline. About 11% of its area is deeper than 10 ft.
Ranks against Otsego County lakes in Michigan hydrography, Michigan DNR lake surveys and Michigan EGLE satellite clarity; shoreline measured from the state outline. How we measure
1 public access site on Lake Manuka.
Michigan DNR boating access, fetched 7 Oct 2026.
Average water clarity is about 12 ft (Secchi depth 3.6 m, satellite readings 2018–23).
Michigan EGLE satellite clarity, fetched 7 Oct 2026.
Michigan DNR survey; straight-line miles.
Lake Manuka is 27 feet at its deepest point, measured by Michigan DNR survey. It covers 164 acres.
Yes. 1 public access site is listed: Lake Manuka.
About 11% of the lake's area is deeper than 10 feet, measured from Michigan DNR depth contours.