Changdi City in Los Angeles is also translated as Long Beach, but no one has translated the name according to the principle of transliteration of place names. Orange County is still in the Greater Los Angeles area, close to the south of Los Angeles. According to the population ranking, Changdi is the second largest city in Los Angeles, second only to Los Angeles and the fifth largest city in California. The city's name comes from the 9 km long coastline and is known as a sanatorium. The most famous is Changdi Port, which has one of the ten highest throughput ports in the world. It is the third busiest port in the world. The city is also rich in underground oil. However, the city's tourism industry is still underdeveloped. The main attraction for tourists is South California's largest beach, the size of three football fields. Long Beach Passenger Terminal is also one of the departure places for passenger ships bound for Katrina Island. It is also worth seeing and recommending.