Valdes Island is one of the Gulf Islands located in the Strait of Georgia, British Columbia, Canada. It is across Porlier Pass from Galiano Island, which lies to the southeast. It has an area of 23 square kilometres, and is 1.6 kilometres wide by 16 kilometres in length. The island is popular with kayakers, boaters and has historically been the site of several huma…Valdes Island is one of the Gulf Islands located in the Strait of Georgia, British Columbia, Canada. It is across Porlier Pass from Galiano Island, which lies to the southeast. It has an area of 23 square kilometres, and is 1.6 kilometres wide by 16 kilometres in length. The island is popular with kayakers, boaters and has historically been the site of several human settlements.