A flyer with event information features four images. Upper left - A person photographing a bush with pink and white flowers. Upper right - two individuals talking to a group about an electronic device, who are each wearing a headlight and orange and yellow vests, respectively. Lower left - An NPS park ranger and staff at a table with check-in materials and a "National Park Service" tablecloth. Lower right - a yellow and black bee on a plant with green leaves and pink buds.

City Nature Challenge BioBlitz

It is BioBlitz time! Cabrillo National Monument is joining The City Nature Challenge by hosting a BioBlitz at the park! Description: On Saturday, April 26th, Cabrillo National Monument is hosting a BioBlitz! Spend the day, during regular park hours, documenting incredible biodiversity using the iNaturalist app. iNaturalist is a platform where people share audios or photos of living organisms through submissions called observations. A BioBlitz … Continue reading City Nature Challenge BioBlitz

A small, colorful sea creature, likely a type of nudibranch, is clinging to a green aquatic plant. The creature has a translucent body with numerous bright orange-tipped appendages, giving it a spiky appearance. The background is a blurred mix of green and brown, suggesting an underwater environment with various plants and possibly coral.

What’s in the Tidepools? – March 2025

(Kellet’s Whelk – NPS Photo/S. Kristiansen) Here is a sampling of what our volunteers observed during this busy month — thank you to everyone who contributed. Remember to send in your photos; we truly appreciate sharing them with everyone. Don’t forget to visit the Tidepool Videos page and our YouTube page. Enjoy the virtual visit through the tidepools. Continue reading What’s in the Tidepools? – March 2025

A man in an orange snow jacket and blue snow pants stands on a tumble of gray rocks and looks into the distance with snowy and icy scenery behind him. Text banners above and below the image advertise the event.

Naturally Speaking Series – When Rhinos Roamed and Walruses Were Weird: The Story of Life in Ancient SoCal

oday, we know Southern California for its sunny days and sprawling cities. But if we travel through the pages of geologic history, the world we know would have looked unrecognizable through the ages. From ancient rainforests 45 million years ago to sunken seagrass meadows 15 million years ago, Southern California has undergone incredible environmental changes and hosted a wonderful assortment of strange, but somewhat familiar … Continue reading Naturally Speaking Series – When Rhinos Roamed and Walruses Were Weird: The Story of Life in Ancient SoCal

A bright red crab is partially submerged in shallow water, surrounded by various types of seaweed and marine plants. The crab's claws and legs are clearly visible, and its body is a vivid red color, contrasting with the sandy and rocky seabed. The water is clear, allowing a good view of the crab and its surroundings.

What’s in the Tidepools? – February 2025

(Bat Star – NPS Photo/P. Geisler) Here is a sampling of what our volunteers observed during this busy month — thank you to everyone who contributed. Remember to send in your photos; we truly appreciate sharing them with everyone. Don’t forget to visit the Tidepool Videos page and our YouTube page. Enjoy the virtual visit through the tidepools. Continue reading What’s in the Tidepools? – February 2025