A multi-branched cactus growing in a dry, grassy landscape. The cactus has long, upright arms covered in spines, with some arms bearing clusters of round, yellowish buds or fruit. The ground around the cactus is a mix of sparse grass and bare soil, and the background is filled with more dry vegetation. The overall scene suggests an arid or semi-arid environment.

Cacti at Cabrillo National Monument

Science Technician Patricia has created a guide describing all the cacti at Cabrillo. This guide will help volunteers identify the different types of cacti for visitors as they move around the park. Patricia says that all the different types of cacti can be found along the Oceanside Trail. You can find the new cacti guide as part of the ebinder in the Terrestrial Plants section. … Continue reading Cacti at Cabrillo National Monument

A woman with short, blond hair wearing a white sleeveless blouse poses for the camera.

Naturally Speaking Series – Climate Change & Collaboration for a Sustainable Future

Earth system changes affect physical, biological, and chemical processes, impacting human health, infrastructure, and financial security through the increased severity of fires and extreme weather events. Throughout time, these processes have changed, and the recent increase in frequency and severity requires risk assessment and planning- towards a positive, collaborative future.  Join climate scientist Dr. Kimberley Rain Miner as she discusses what’s happening and why, and how … Continue reading Naturally Speaking Series – Climate Change & Collaboration for a Sustainable Future

A vibrant sea creature, likely a nudibranch, is nestled among underwater plants and sand. It has bright orange, feathery appendages and a striking blue head, creating a vivid contrast against the muted browns and greens of the surrounding seaweed and seafloor. The creature's delicate structure and vivid colors make it stand out in its natural habitat.

What’s in the Tidepools? – April 2025

(Retiring Hairy Crab – NPS Photo/R. Streeper) Here is a sampling of what our volunteers observed during this last month of the tidepool season — thank you to everyone who contributed. The Black Sea Hares and their eggs did not disappoint visitors. 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. … Continue reading What’s in the Tidepools? – April 2025