We have 10 boats that are all the same size and types just different colors, so we broke up the times to allow a better check in process. The 1st shift boats come back at 2:45pm for the AM and start at 3pm for PM, the 2nd shift boats come back at 3:15pm for the AM and start at 3:30pm for the PM, the 3rd shift boats come back at 3:45pm for the AM and start at 4pm for the PM. You can choose the start time on all the AM shifts and the End time on all PM shifts if you want more than the 4 hour minimum. All 8 hour shifts are set times when booking but we can be flexible on the timing since you will have the boat for the entire day.