Depart! Cycling to the US-Mexico border in San Diego today began my long-distance cycling trip to the United States, the first stop is San Diego in the southwest corner of the United States. There are many differences between cycling in the United States and domestic, such as bicycles can be driven in motor lanes, picture one is when I turn left on the motor vehicle left lane. Out of the city, there is a dedicated bicycle lane for the pick-up and drop-off lanes, and long-distance riding no longer has to worry about cars, especially the risk of heavy trucks. Today, I have been accompanied by the water view of the San Gabriel River and the beautiful view of the world's most beautiful road, California Highway 1. On the side of the road, the distance of 100 kilometers makes people feel that the meaning is still not enough, and I arrived at the key point before I was done. Stay at the invincible sea view hotel, wash away the sweat, and prepare to go out to enjoy the red and winey night of the small town of Laguna.