First, if there is such a condition: it takes no more than 3 hours by car, parents and children can travel, play with sand and see the sea, and it is best to go to the sea. Then you should choose a beach not more than 300 kilometers from Guangzhou to the province. Moreover, we should not choose any island, because it is troublesome to take the car to the island, and some islands are not allowed to drive up. Therefore, it is a waste of time if you want to take a car for the transition, so if you want to go to the island, you should go to a place where there is a bridge that can drive directly to the island. Then the optional and fun beaches with few people are as follows: