Seaplane service proposed between Ha Long and Co To Island 2 June 2023 bwsadmin News Travel Vietnam A new seaplane service between Tuan Chau and Co To Islands in Quang Ninh Province will be launched by Hai Au Aviation Company next month. Source: VNExpress International, https://e.vnexpress.net/news/travel/seaplane-service-proposed-between-ha-long-and-co-to-island-4612764.html