There are extra charges for other water activities on Coral Island (such as banana boats, kayaks, sea walking, etc., averaging 400 baht or more per person, cash only). Deep sea diving on Racha Island averages 2400 baht per person (WeChat Pay or Alipay accepted, payable to mainland Chinese merchants). Most tour participants are tourists from mainland China, and the tour guide mainly speaks Mandarin. The itinerary includes (onboard water slide, stand-up paddleboard, snorkeling, fishing, onboard drinks and desserts, Coral Island buffet lunch). The blue sea and sunset views of Racha Island are well worth it.