We were staying in Cannon Beach (10/16/2013) and had few choices to find any vegan dining so, since we had a full kitchen, found Seaside Health Foods a great place to shop. They have a nice selection of canned and a few frozen vegan selections (not everything vegan). The cereal bins offered a great variety of healthy choices for breakfast.
The owner/proprietress was gracious and helpful.
We will definitely return on our next visit to the area; hopefully very soon.
Cons: Few Vegan Ice Cream Choices, Limited Vegan selection in cold foods