09/05/2026
🦋 The monarchs are on the move in Delta County.
During late summer and early fall, monarch butterflies make their remarkable journey south toward Mexico. Along the way, the geography of the Stonington Peninsula creates an important stopping point, where monarchs can gather near Peninsula Point Lighthouse before continuing across the open waters of Lake Michigan and Green Bay.
And here's part of what makes seeing them so special: you have to get a little lucky.
This isn't an attraction with scheduled showtimes. Wind, weather, temperature and timing all play a role in when the monarchs gather and when they move on.
If you're hoping to catch the migration, your best chances are before dawn or near sunset, when monarchs may be gathered in the cedar trees around Peninsula Point. In the evening, they roost for protection. As the morning sun warms them, they become active again and, when conditions are right, continue their journey south.
A cool front and favorable winds can help trigger movement across the water. Some days you may see only a handful. Hit it at the right time, and you could witness hundreds or even thousands gathered together.
That's what makes the experience so rewarding.
The migration is underway and should continue through September. If you're making the trip to Stonington, enjoy the drive, explore Peninsula Point Lighthouse and keep your expectations adventurous. Nature doesn't make appointments. 🦋
🎥 Watch the video to learn more about one of Delta County's most remarkable seasonal visitors.