Standard admission to the Intrepid Sea, Air & Space Museum generally includes access to the carrier flight deck, gallery deck, and mess deck, as well as the Space Shuttle Pavilion (where theEnterprise space shuttle is held), and theUSS Growler submarine. While the British Airways Concorde can be seen from outside, the interior can only be accessed by private tour. Visitors can pre-purchase an admission ticket that allows quick access via a dedicated advanced sales entrance, and upgrade to include the simulator rides. Multi-stop package tours often combine skip-the-line access to the museum with early access to the Empire State Building observation deck, a visit to the 9/11 Memorial and Museum, guided bus tours, or hop-on hop-off boat tours along the Hudson River.