Claim: Gulf Islands include Gabriola Island, Mayne Island, and Salt Spring Island, known as "Chuan" or "Chouan" Island in 1854, which is the largest island in the Southern Gulf Islands.
Evidence: Gabriola Mayne Salt Spring The island was known as "Chuan" or "Chouan" Island in 1854, but it was also called "Salt Spring" as early as 1855, because of the island's salt springs. Salt Spring Island is the largest, most populous, and the most frequently visited of the Southern Gulf Islands.