Rainbow — Cannabis & Accessories (Thunder Bay) Serving Thunder Bay for over 30 years, Rainbow is a locally run, licensed Ontario cannabis retailer with a deep selection of accessories—glass, vaporizers, papers, grinders, storage and more. Our team offers friendly, fact-based guidance on formats and regulations so adults can shop confidently. We focus on a straightforward, compliant buying experience and responsible service. Adults 19 only. Valid government ID required. Please consume responsibly.