Critter Walks 

During the wet phase, the Mather Field Vernal Pools in the Illa M. Collin Preserve host dozens of species of aquatic invertebrates. Half of them have not even been named yet! Watching and wondering about them draws us deeper into their ancient, mysterious world. Bigger critters who eat them come to the pools to dine: frogs, snakes, shore birds, wading birds, and more. If you want to meet them, along with their famous pool mates the Fairy Shrimp and Tadpole Shrimp, join us for a Critter Walk!

Sunday, March 1, 10:00 AM 

Sunday, March 1, 1:00 PM

Sunday, March 15, 10:00 AM

Sunday, March 15, 1:00 PM

For tickets *click here.

NOTE: Vernal Pool Walks do sell out quickly. If your desired tour selection is sold out, please join the waiting list. We will fill cancellations on a first-come, first-served basis. 

Flower Walks 

As the spring sun warms the earth and the pools evaporate, the wet phase gives way to the flower phase. During the month of April, flowers bloom in an ever-changing abundance of colorful rings and patches. The uplands (in between the pools) host their own suite of species, while the wetlands provide habitat for dozens of flowers that only bloom in vernal pools. Each pool has its own assortment of flowers depending upon the soil, hydrology and many factors we don’t yet understand. Come explore this rare and fascinating natural treasure with us!

Sunday, April 5, 10 AM    

Sunday, April 5, 1 PM   

Sunday, April 26, 10 AM  

Sunday, April 26, 1 PM  

For tickets *click here.

NOTE: Vernal Pool Walks do sell out quickly. If your desired tour selection is sold out, please join the waiting list. We will fill cancellations on a first-come, first-served basis.