The seaside town of Pacific Grove is affectionately known as “Butterfly Town USA.”
Each year, thousands of monarch butterflies arrive to spend the winter in the sheltered eucalyptus groves of the Monarch Grove Sanctuary.
This remarkable natural phenomenon draws visitors from around the world.
Why Monarchs Come to Pacific Grove
Monarch butterflies migrate from across North America in search of a mild winter climate. The coastal groves of Pacific Grove provide the perfect combination of protection, humidity, and temperature.
Clustered together in the trees, the butterflies create a breathtaking sight during the winter months.
Best Time to Visit
The monarchs typically arrive in October and remain through February.
On warmer afternoons, they often take flight in large numbers, creating one of the most magical natural experiences along the Monterey coast.
At a Glance
Location: 250 Ridge Road, Pacific Grove, CA 93950
Best viewing season: Mid-October – February (peak November – January)
Admission: Free, open daily sunrise to sunset
Managed by: Pacific Grove Museum of Natural History & City of Pacific Grove
Accessibility: ADA-accessible gravel trail, no pets allowed
Innkeeper Tip
Visit the sanctuary on a sunny afternoon when temperatures rise slightly. This is when the butterflies are most active and likely to take flight.
Staying Near Pacific Grove
Monterey Peninsula Inn is located just minutes from the Monarch Grove Sanctuary, making it easy for guests to experience this unique seasonal event. During winter months, many visitors enjoy combining a butterfly sanctuary visit with coastal walks and scenic drives along the Monterey Peninsula.
Return to the inn and relax in the outdoor Hot Tub or warm yourselves by the custom Fire Pit. Or enjoy the privacy of your own room or cottage.