Booking tickets on Klook is very convenient. I bought a 1:30 PM boat ticket, and the meeting time was 12:00 PM. First, we registered, then we were free to visit the exhibition hall and buy souvenirs. There was plenty of time. At 1:00 PM, we gathered at the pier opposite. The staff's instructions were very detailed. Unfortunately, the weather was bad, and it started raining when we arrived at Gunkanjima. The staff thoughtfully prepared raincoats for us. Everyone should bring an extra windproof and waterproof jacket, as it gets quite cold out at sea. If the weather is good, a hat and sunglasses are essential. The boat will circle Gunkanjima on the way for everyone to take photos. The entire trip ends, and we disembark at the pier at 4:30 PM. So, if you can arrive early at the exhibition hall to visit and shop first, you can leave directly after disembarking without having to go back to the exhibition hall. If you're driving, it's also convenient, as there are parking lots near the pier and exhibition hall.