For every full paying adult, one child can travel FREE on any Swan River Scenic Cruise. Perth/ Fremantle Explorer or Perth/ Fremantle One Way Cruises. Simply quote KIDSAPR17W at the time of booking. Enjoy a leisurely cruise to Fremantle these school holidays, and keep the kids entertained with Cruise Bingo on board. All bingo winners receive a lucky dip prize! Cruise Bingo is available on all Fremantle cruises until the end of the school holidays.