We are going to be in Bermuda on Celebrity and on the 16th, there is a 5 hour tour "bermudaful Island tour" on Viator tht is 5 hrs with a nice itinerary. There is a 9:30 departure but our ship leaves at 4:00 PM. Has anyone taken this and does it really get back within the 5 hours? I don't want to "miss the boat"!