About our Instructors & Staff

Ecological Tours, Inc., is a 501(c)(3) non-profit that seeks to explore traveling from a sustainable lens. Currently, we are focused on producing seaweed wild-tending tours in Northern California.


​Instructor: Tanya Stiller

Tanya Stiller has been teaching for 20 years as an herbalist, nutritionalist, gardener, permaculturalist, and ethnobotanist. She received her herbalism certificate in 1994 from The Oregon School of Herbal Medicine, ran a tincture and lotion-making company called Pixie Plants and has since been teaching herbal and foraging classes in Oregon and the Bay Area. 

Tanya attended the University of Oregon and received her Bachelors of Science in Environmental Studies, where her thesis was focused on “The Ethnobotany and Ethnomedicine of the Oregon Native American.” 

Tanya is a multi-generational Oregonian, growing up in northeastern Oregon on a small family farm, raising rabbits and sheep, and helping her family with the cherry orchard and farm. 

You can finding her teaching classes on botany, seaweed harvesting, foraging, and homesteading through both the Ohlone Center for Herbal Studies and the Institute of Urban Homesteading. She currently works as a Garden Teacher in East Oakland - and previous to that Tanya worked as a Garden Teacher at the Edible Schoolyard on the Martin Luther King Jr. Middle School campus. She lives at an Intentional Community house called Brigid Collective in West Berkeley.


Organizer: Ayako Nagano

Ayako Nagano graduated from the University of California, Berkeley, B.A. Legal Studies in 1994, and from Fordham Law School with a Juris Doctorate in 2000 with a Summa Cum Laude in Public Service. Ayako is licensed to practice law in the States of California and New York, and is Managing Attorney at Midori Law Group, P.C.

Currently, Ayako serves on of the Boards of the following 501(c)(3) non-profits:
- Future Unite Now (an organization that serves as a fiscal sponsor to cross-cultural and/or community-oriented projects),
- Common Vision (an organization that plants fruit trees in school yards all across California),
- Transition Berkeley (a local Transition Town initiative to bring neighbors together to build a more equitable, sustainable, resilient future for Berkeley).

Ayako also sits on the Social Justice Working Group of Transition U.S., and organizes the Plastic Reduction Working Group at the Ecology Center in Berkeley, California. She also sits on the steering committees for the NorCal Community Resilience Network (an organization that plans for resilience in the age of climate change).


​Instructor: Alice Green

Alice Green has taught privately and through Point Rayes Field
Seminars, College of Marin, University of California Berkeley
Extension and San Francisco Community Colleges starting in 1975. Her
love of sea vegetables started during her three year stay in Japan.


Seaweed Tours


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©2019-20 by Ecological Tours, Inc., a 501(c)3 not-for-profit organization.