California Biodiversity Day BioBlitz @ Rose Creek

September 13, 2025 - 9:00 AM to 11:00 AM

Pacific Beach CA 92109

 BioBlitz at the Rose Creek Salt Marsh

Biodiversity Day flyer.

If you are already on iNaturalist, join the Rose Creek BioBlitz. If you do not have an iNaturalist account, create one before you come. Or just show up and we can walk you through all of it.

All you need is an app enabled device or a camera.

You will be part of a community science project throughout California. And if you attend, you will get a free sticker!

San Diego County is a biodiversity hotspot, with more animal and plant species than almost any other county in the contiguous United States. However, in recent decades, increased threats from new and existing development, wildfire, and the effects of climate change, such as drought and extreme heat, have begun to threaten the region’s native ecosystems and local wildlife.

California is one of the most biodiverse regions in the world and is one of 36 global biodiversity hotspots.

Global biodiversity hotspots contain exceptional concentrations of plant and animal species found nowhere else on the planet, but they also experience high rates of biodiversity loss. Unfortunately, California is no exception – approximately 30% of our species are at risk of extinction.

What is California Biodiversity Day? Read all about it here.

Go with a group

iNaturalist training and a community of passionate observers will gather on Saturday, September 13th from 9 AM until 11 AM behind the Rose Creek Cottage. Native plants and birds will be our targets but who know what else we will spot.

Park on Fogg Street and walk over. We will be behind the Rose Creek Cottage.

Take public transit. Bus 8 and 27 stop by the Rose Creek Cottage at the intersection of Garnet Avenue and Soledad Mountain Road.

Go Solo

Or just go out on your own and make observations at the Rose Creek Salt Marsh from September 6-14, 2025.