Monarch Grove Sanctuary - Pacific Grove Attractions

Thousands of Monarch Butterflies migrate to the Monarch Grove Sanctuary every October and cluster together on the area's pine and eucalyptus trees. The butterflies overwinter until February when they join the spring Monarch migration northward and eastward. The migration of the butterflies to Pacific Grove has earned the town the nickname "Butterfly Town, U.S.A."

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Each year in late summer and early fall a special generation of Monarchs is born. These butterflies fly as far as 2,000 miles and as high as 10,000 feet. They travel about 100 miles a day—many of them to Pacific Grove, where they land by the thousands in the eucalyptus and Monterey pine trees. Originally, they went to the town's park. Now most go to the sanctuary where you can see them.
The Monarchs are typically in Pacific Grove from October to February, making this the time time to visit the small California town.
The Sanctuary is always open and there's no admission charge, but portions of it are still restricted in order to protect the butterflies.