A colorful seaside birthday poster with rocky shores, sea creatures, and festive decorations, celebrating 30 years of TPERP’s intertidal protection, education, and restoration.

Happy Birthday TPERP!

Happy 30th birthday! Today, November 9, 2026, we’re celebrating three decades of the Tidepool Protection, Education and Restoration Program (TPERP) at Cabrillo National Monument. After a few studies showed our tidepools had struggled over the previous 20 years, the program was born. Let’s hear from former Superintendent Terry DiMattio about why TPERP started back in 1996. I usually do not write about a single topic, … Continue reading Happy Birthday TPERP!

A translucent, blue-tinted Portuguese man o’ war floats on water, its balloon-like body above seaweed and small golden-brown algae beneath the surface.

More Weirdness and Warning from El Niño

Last month we reported on weirdness in the tidepools due to effects from El Niño. We have a followup to that post along with a warning for volunteers and visitors. Yesterday (10/26), TPERP Denine spotted something blue in the water at the Zone1/2 boundary. At first she thought it as a Velella Velella, But as she got closer she saw that it wasn’t a Velella … Continue reading More Weirdness and Warning from El Niño

a rocky coastline with people standing on a cliff under a clear blue sky.

Kelvin Waves, Sea Turtles and Snakes, Oh My!

Effects from El Niño are starting to feel like events from Jumanji. With the strongest El Niño on record, southern California is starting to have some unusual observations. Kelvin Waves You may not have heard about Kelvin waves, but the thing to know is they will be bringing higher surf and possibly raising sea level by 6-12 inches. These waves and other effects from El … Continue reading Kelvin Waves, Sea Turtles and Snakes, Oh My!