My estimate, partially shown previously is that it took about 20 minutes to load the coconuts, 21 minutes to take the oxcart to the fruit vendor, 22 minutes to retrieve it and return for the final coconut, and 21 minutes to get back to the fruit vendor. This is based on average speed of 3.7 miles per hour for the ox pulling a loaded oxcart. This total is about 85 minutes.
However, the much bigger question is why the elapsed time from off the plane at Seychelles International Airport to get to the cluebox for the DETOURs took so long. If Jet/Cort landed at 0715 and it took 30 minutes for their Camera/Sound crew to be ready to leave the airport and the helicopters were sequential every 5 minutes from about 0800 and 0900 and Jet and Cord had a flight time of about 15 minutes for the 40 miles to La Digue heliport, they should have landed around 920am, not one hour later. What happened to that time?