The Great Waters Group represents Milwaukee, Waukesha, Ozaukee and Washington counties in southeast Wisconsin, on the shores of Lake Michigan. Our outings program has started back up so keep an eye on the Calendar and subscribe to our monthly e-newsletter. Use the buttons below to Donate, Join the Sierra Club or purchase a Gift Membership. These all bring funds back for the work of our local Great Waters Group.
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Local News and Information
Join us at beer garden gatherings in July and August
June 7, 2026
The Great Waters Group is hosting two beer garden gatherings this summer: July 14 at Whitnall Park, and Aug. 20 at Estabrook Park.
Join us for summer outings
May 20, 2026
The Great Waters Group will offer a variety of outings this summer, from joining the Ice Age Trail Alliance on June 6, exploring healing plants at Hopkins Hollow on June 25, to touring the sustainable Ravensholme Farm in Waukesha on July 11.
May program: Broken Funding, Better Future: Fixing Public Transit with RTA
May 20, 2026
MCTS is facing a fiscal crisis. Wisconsin transit advocates want to address transit funding and regional transit authorities in the next legislative session. Come learn more on Tuesday, May 26, at the Wauwatosa Library.