The Doubletree Grand Hotel Biscayne Bay is a waterfront luxury full-service condo-hotel in the heart of downtown Miami, Florida. The Doubletree Grand Hotel is situated directly on beautiful Biscayne Bay and is just one mile away from the Port of Miami which encompasses some of the most popular cruise ships such as Royal Caribbean, Carnival, Seabourn, Norwegian, Celebrity, Oceania, Fred Olsen, Crystal and Azamara Cruise Lines. The Doubletree Grand Hotel Biscayne Bay is a waterfront luxury full-service condo-hotel in the heart of downtown Miami, Florida. The Doubletree Grand Hotel is situated directly on beautiful Biscayne Bay and is just one mile away from the Port of Miami which encompasses some of the most popular cruise ships such as Royal Caribbean, Carnival, Seabourn, Norwegian, Celebrity, Oceania, Fred Olsen, Crystal and Azamara Cruise Lines. The hotel's backyard is the Sea Isle Marina, home to the Miami International Boat Show, where guests can enjoy scenic charters of Miami on the Biscayne Lady, Island Queen Cruises, and Pier 5 Fishing.