Lying south and east of Cat Ba Town, the 300 or so karst islands and limestone outcrops of Lan Ha are just as beautiful as those of Halong Bay and have the additional attraction of numerous white-sand beaches.
Due to it being a fair way from Halong City, not so many tourist boats venture here, meaning Lan Ha Bay has a more isolated appeal. Sailing and kayak trips here are best organised in Cat Ba Town.