When you go, the fare is 50 RMB per person for entering the island + boat fare (7 RMB for passenger boat/ 14 RMB for yacht) (passenger boats have standing room only, which can be crowded; yachts have seats, which are usually crowded as well).
When you come back, you just need to buy a boat ticket.
It's cheaper to bring a student ID card.
Take a bus to Boon Kha pier for 10 yuan, then take a boat.
Students 35+7 yuan.
It should be like this. Remember to bring your student ID