Every fall, thousands of Monarch butterflies converge on both Pacific Grove and Santa Cruz Natural Bridges State Park eucalyptus groves during their migration to warmer climates.
These orange and black butterflies hang in clusters from eucalyptus branches in order to maintain body temperature when it dips below 60 degrees. As such, these pods of tightly clinging insects look like giant bouquets of butterflies…a spectacular display of natural wonder for the entire family.
Milk Thistle- Habitat needs of the Monarch
According to David Munro at San Francisco State University, "It has an extensive home range, but specific habitat needs. The ecology and the home range of the monarch butterfly are closely intertwined, as with most species. Put simply, it is dependent upon milkweed plants...the distribution of the monarch is controlled by the distribution of milkweed, it regulates their density in a given area, and it is for this plant that the monarchs migrate for long distances every year. So dependent upon milkweed is the monarch that where one finds the monarch, one will also find milkweed."
Two locations in Northern California for Monarch migration
Visitors come from around the world to view this spectacular event. Both Pacific Grove and Santa Cruz Natural Bridges offer Monarch butterfly tours throughout the sanctuary. The best time to see the Monarchs are October through February.
Pacific Grove Monarch Sanctuary
“To find the Monarch Grove Butterfly Sanctuary, take Lighthouse Avenue to Ridge Road, and find parking. The pathway to the Butterfly Sanctuary is tucked away next to the Butterfly Grove Inn's property, and has a white picket fence on one side."
Pacific Grove Monarch information
Admission- FREE
Santa Cruz Natural Bridges State Park
The only state Monarch preserve in California, Natural Bridges offers a great place to take the kids for the day. Picnic and play on the beach and afterward take a tour of the butterfly habitat. “Visitors can view the over-wintering Monarchs by walking down the park's boardwalk to an observation deck in the eucalyptus grove.”
- Docent-led butterfly, tide-pool and nature trail tours are available.
- Large groups should reserve beach use and tours by phone at least 2 weeks in advance.
- Special event reservations should be made at least 1 month in advance.
- A picnic area is located off the main parking lot
- Beach access and photo opportunity of Natural Bridges
- Tables, barbecues, water faucets and restroom facilities are available
- Boardwalk is wheelchair and stroller-accessible
- WiFi service at the visitors center
Natural Bridges Park Information
Admission - $8 per car day use fee to park inside the state park- there is an outside parking lot that you can use if you want to walk in. There is no charge for walk ins.
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