Battery car introduction: During the Expo, there were nearly 200 battery cars in the park providing transportation services. There are 4 sightseeing tour routes for battery cars, of which line 1 starts from the battery car terminal to the Ocean Science and Technology Museum, line 2 goes from Haiyang Science and Technology Museum to the south exit, line 3 goes from the south exit to the "Manyun Qingfeng" service area, and line 4 It is a closed loop formed by the city exhibition garden and the bay flower field. If tourists need to take a ride, they only need to find a nearby battery car ticket office to buy a ticket. It costs 30 yuan for four rides.