The OKW watercraft operate roughly from 11 am - 11 pm. It is a pleasant ride which I would estimate to be about 15-20 minutes. The last time we took the boat over to Disney Springs was the summer of 2014 (DTD then). The first stop was the dock next to the House of Blues, next was at the Characters in Flight balloon and lastly was, I believe, the dock near the Rainforest Cafe. I have seen wheelchairs, although personally, not scooters, on board. The boats are a nice break from bus transportation and are popular; busier in the evenings then mid-day in our experience.