I don't know about renting bicycles in Bio-Island, but you can rent bicycles from the university town to enter Bio-Island. Take the subway to the university town. There is a place to rent bicycles outside the subway station. There are similar orange bicycles along the BRT. You can borrow it from Yangcheng. 1 hour is free. If it exceeds 1 hour, one hour seems to be 1 yuan, but only if there is a deposit of at least 300 yuan in Yangchengtong. In addition, you can borrow a yellow bike next to the subway station, which is more expensive.