the center for alaskan coastal studies (cacs) is a 501-c-3 environmental education not-for-profit organization in homer, alaska. established in 1982, cacs delivers educational programs and guided tours to over 11,000 students and other visitors every year. our grassroots organization has grown to over 350 memberships and we have more than 70 active volunteers and an annual kachemak bay coast walk event that involves more than 200 additional volunteers.