Is there a bus to Tangxia, Dongguan at Liangzi Station in Rongxian County?

No. According to Baidu map, the distance from Liangzi Station in Congrong County to Tangxia in Dongguan is 440 kilometers, and there are no cars in this section. From Liangzi Station in Congrong County to Tangxia in Dongguan, you can take a high-speed train transfer or take a bus like this:

1. First, take the bus from Liang Zi Passenger Station to tengxian Station, and then get off at Guangzhou South Railway Station by train D3805.

2. Secondly, after getting off, transfer to the G 103 1 train and get off at Shenzhen North Railway Station.

3. Finally, take Metro Line 4 and get off at Song Yuan Gorge Station, and take bus M 188 to Tangxia Town.