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April 27, 2024

320 County Road K, Fond du Lac, WI 53049


Details coming soon. You can see details of the 2023 event below.





Tours throughout the day

Easement Tour

10: 00 - 11:00 a.m.  
The CSA conservation easement includes 237 acres and cannot reasonably be fully-toured in 60 minutes.  This tour will begin with a shortened version of the standard solar array tour followed by a walk around other portions of the CSA conservation easement, including walking up a steep hill to see the oak savannah and the prairie on top of the Niagara Escarpment. Ground conditions will be uneven and may be muddy in locations; please plan footwear accordingly!

Solar Array Tours

11:15 p.m., 12:15 p.m., &  12:45 p.m.
Solar array tours will take approximately 30 minutes each and will cover uneven terrain that could be muddy in spots. Please plan footwear accordingly!


Pre-registration is encouraged, but not required for any tours.
Click here to open a sheet and add your name to the tour of your choice.


Explore on Your Own

10:00 a.m. - 3:00 p.m.
The property will be open for the public to explore. Visitors are required to sign-in at the registration desk in Founder's Hall and wear a badge while on the grounds. Please stay on pathways and remember to take only pictures and leave only footprints.

Join Wisconsin's Bumble Bee Brigade!

Bumble Bee Brigade Training 

11:30 a.m. - 12:30 p.m.
Bumble Bee Brigade is a citizen-based monitoring network designed to improve our understanding, management, and conservation activities of Wisconsin Bumble Bees. Jay Watson, a Wisconsin DNR Conservation Biologist, will lead the training session. Learn more about the Bumble Bee Brigade.

Seek out Bumble Bees

1:00 p.m. - 2:00 p.m.
Queens of various bumble bee species begin emerging in late April and early May and seeking out spring ephemeral blossoms. Based on the limited number of bees that are likely to be "awake," the newly trained brigade will split up to see who can spot and photograph bees on the property over the course of an hour.

Bumble Bee photo collecting

2:30 p.m. - 3:00 p.m.
We'll collect photos and help with some identifications during this final half hour of the Earth Day Fair. Bring cameras/phones to the lobby of Founder's Hall. 

Food Available

taco truckRomero's Taco Truck

11:30 a.m. – 1:30 p.m. 
Romero's serves tacos, quesadillas, tortas, burritos, quesabirrias, nachos, and queso dip.
Vegetarian friendly.
Cash and Cards accepted.

Film Screening

The Letter: A message for Our Earth

1:15 p.m.
Join us to watch The Letter, a documentary about how spiritual values unite us in the face of the planetary emergency. After we watch the film, we’ll discuss what we can do to join the movement of people who are building a better future. Every member of our community is needed to make a difference—everyone has special skills and gifts, and all are important.

The Letter tells the story of a journey to Rome of frontline leaders to discuss the encyclical letter Laudato Si’ with Pope Francis. The exclusive dialogue with the Pope, included in the film, offers a revealing insight into the personal history of Pope Francis and stories never seen since he became the Bishop of Rome.



Explore a variety of sustainable household products that could replace what you currently use every day. Raffle tickets are available on site only. Items will be raffled with a 3:00 p.m. drawing; you need not be present to win. The following are some of the items to be included in the raffle:

  • Seek Bamboo dryer balls (bag of 4)
  • Seek Bamboo dish soap bar (1) and wooden holder
  • Seek Bamboo reusable mesh produce bags (1 set of 3)
  • TruEarth Laundry Detergent strips (32 loads)
  • TruEarth Toilet Bowl Cleaner strips (24 strips)
  • TruEarth Beeswax Snack Bags (4)
  • Kitchen Compost bin & charcoal filters
  • David's Home Bamboo Bedsheets (queen)
  • Cloud Paper Bamboo paper towel (4 rolls)
  • Reel Bamboo toilet paper
  • Wayward Chickadee Shampoo Bars
  • Great Wrap: 100% Compostable Stretch Wrap
Invitation Only