Bhaya Cruises offers private and group cruises in Halong Bay, Vietnam. They operate 8 smaller private boats that can accommodate up to 10 people each, as well as larger cruise ships like the Bhaya Classic and Au Co that can hold 30-40 or up to 70 passengers, respectively. The document provides sample itineraries for half and full day private cruises on the Bhaya Legend, as well as details on amenities and activities available on the different cruise ships. Suggested activities are outlined for incentive groups, weddings, and company retreats both on board the ships and at locations like beaches and Cat Ba Island.