top of page
Image by Erin Minuskin

Butterfly Cruise

Science and adventure on Plum Island!

Would you like to be a Citizen Scientist? Take a cruise across Death’s Door to an island wildlife refuge and learn about Monarch butterflies?  Participate in a fun family-friendly activity?


The Friends of Plum and Pilot Islands (FOPPI) are hosting our first Butterfly Cruise!  You’ll learn fun facts about the Monarch butterfly, their migration and the role this part of the country plays in it as well as what we can do to protect these fragile creatures. 

You will get a chance to net the butterflies, apply a monitoring tag them, and trace their migration south to aid scientists in studying their population and migration patterns. 


Your adventure begins at Gills Rock where you’ll board FOPPI’s boat, The Shoreline for a trip to Plum Island, which houses a former Coast Guard and lighthouse facility. The island is now part of the Green Bay National Wildlife Refuge.

Shoreline Idling Off Plum Dock.png

Date for the cruise:     August 21, 2024

Time:                            9:00 am departure from Gills Rock

Transportation:           The Shoreline

Cost:                            Adults (Ages 13+) $35

                                    Children (Ages 12 & Under) $25

Gills Rock Shoreline Map.png

Cruises depart from:

The Shoreline Marina

12747 Highway 42

Ellison Bay, WI (Gills Rock)

bottom of page