Klook is convenient to use. I booked for three people, and they sent three QR codes. It was easy because all three booking details were there. Inside Sea Paradise, they stamped invisible glow-in-the-dark marks on the back of our right and left hands, so after showing the QR code twice, we just had to show our hands from then on. It was very convenient. Klook sent the voucher quickly, so we had a great trip. 2026.05.02