Hello,
1. You can go to Hebaoling, Shanwei Station, Shenzhen Bus Station first. After you get on the bus to Shenzhen, you can ask the conductor if there is a free transfer ticket to Honghai Bay. If so, she will give you a ticket. After you get off the bus, take that ticket and wait for the bus on the road next to the station to Red Bay, so that you don&;t have to worry. ; I don&;t have to pay the fare to Red Bay.
2. You can directly take a bullet train in Shenzhen for 1 hour to Shanwei, and then transfer to Hongwan in high-speed railway station, Shanwei.
3. You can take a taxi directly to Hongwan, probably 50 yuan.
You can refer to my previous travels of Red Bay: