american cetacean society - orange county 


The Spring 2018 graduating class!

The Spring 2016 class with their diplomas!

The Summer 2017 class with their diplomas!

The Fall 2014 class with their diplomas!

Desi Green

ACS-OC Naturalist Instructor Since 2009

ACS-OC Naturalist Steve O'Toole (right) explains some finer points aboard a boat out of Dana Point.

Species studied include:

•             Gray, Blue, Fin, Minke, Humpback and Orca whales

•             Common, Bottlenose, Risso's and Pacific Whitesided dolphins

•             California Sea Lions

To enroll, you must be at least 18 and an ACS-OC member.   If you're not yet a member, you can buy a student membership for $35, payable by separate check (made out to "ACS") at the first class meeting.​

ACS-OC conducts naturalist training once or twice a year.  The next class will most likely start in January 2018, and run through March (ten meetings).  To express interest for this and future classes (no obligation), please email the instructor, Desi Green, at

This is a great chance to learn more about whales and dolphins!  Once you’re certified, you can represent ACS-OC on board whale-watching vessels, at schools and at other venues.

Some of our Naturalists have science backgrounds, but most do not. To be certified, you'll need a sincere interest in the subject, an aptitude for learning, good interpersonal/communication skills, and a willingness to devote time to learning more about these beautiful animals and how to teach people about them.

Naturalist candidates are expected to attend at least 10 sessions, make short presentations in front of the group on all species studied, and pass a 2-page written quiz.

love whales?  become an acs-oc certified NATURALIST!