Purchasing directly through Klook is very convenient, and the prices are reasonable. You can buy and use it immediately, and you don't have to spend extra time queuing at the counter to buy tickets on site. Just show the QR code at the ticket gate. When purchasing tickets for multiple people, Klook also provides multiple QR codes, so each person can scan and enter separately. There will be a security checkpoint before entering, so remember not to bring anything that resembles a weapon. After entering, you can borrow an audio guide device for free on the ship and return it at the exit without any ID deposit. The Midway Museum is very large, and you can spend about three to four hours walking around and taking pictures inside. The upper deck displays fighter jets and offers views of San Diego Harbor. The lower deck allows you to visit the living quarters of the crew, such as the engine room, dining room, kitchen, etc., which is very helpful in understanding life on board. Overall, the experience is very interesting, and I recommend visiting if you go to San Diego.