Doris cruise – truly 5-star cruise experiencing Lan Ha Bay, Halong Bay. Passengers have new different and marvelous destinations at Lan Ha Bay and Ha Long Bay, swimming and kayaking at Ba Trai Dao Islet, heading to Dark & Bright Cave (Hang Sang & Toi), Con Vit islet (Duck Islet), Thumb islet and Gia Luan Harbor … Let’s discover itineraries and beautiful blue ocean in yellow sunshine