The fence on the beach party side looks low, but the motorcycle with air wall can't fly over, and then it reaches position 2. There is a high sentry, a ground patrol and a monitor at this intersection. Wait until the two people leave a gap in the field of vision and stay directly behind the house from under the monitor. To explain again, the fence of this station 2 extends to the sea on both sides, so you can only cross here, or you can only swim in the sea. If you are really stupid, you can swim from the beach party, bypass this checkpoint, and never swim from the fence of the checkpoint, because there is no place to go ashore.