Is Weizhou Island 150 a round-trip ticket?

According to Beihai Weizhou Island Tourism Network, there are four round-trip air ticket prices in Beihai Weizhou Island: small boat: one way 120 yuan, round trip to 240 yuan; Economy class for large ships: one way 180 yuan to 360 yuan; General class of large ship: one way 150 yuan, round trip to 300 yuan; First class: One-way 240 yuan, round trip to 480 yuan. Ships from Beihai to Weizhou Island are divided into big boats and small boats. High-speed passenger ships (small boats) can take 372 to 439 people and take about 90 minutes. High-speed passenger ships (large ships) can take 1 146 people, which takes 70 minutes; The ro-ro passenger ship (large ship) can take 364 to 367 passengers, and it takes 150 minutes per month. So Weizhou Island 150 is a one-way ticket, not a round-trip ticket.