It's sketchy, but could Mopper have it at the Speed Bump? Looking at the sand(which is same as beach sand) and the raised highway tells me that they are close to a major Bridge and still in the coastal area. Also, with respect to the relative location of other teams Art&JJ at Mattanchery and Ralph&Vanessa south of that doing the coir work , i think this speed Bump is somewhere south of Mattanchery near one of the Aroor Bridges(there are several of them and it's not easy to pinpoint which one due to lack of clues).
They definitely get it eventually:
There are shadows when Mark and Bopper do the Speedbump. Perhaps Chateau can work the magic to predict the time of day this was taken. It would also help determine if it was an extended RB of 24 hours, instead of 12 or 18.
Order of finish last leg was:
minute behind them Vanessa/Ralph - on mat together.
Bopper/Mark, approximately 3 hours behind Dave/Rachel.
It's daylight (overcast) when Dave/Rachel receive a greeting and get a clue/dots from high priest which would indicate a 24 hour pit stop unless Hoh. I feel extended pit stop.
Vanessa falling/Ralph could be them racing to go after FF since they aren't to far behind Brenchel at Pitstart.
We know Brenchel arrive at FF, but since it required shaved heads after stacking 150 bales of hay, they opt out of FF before doing anything. That's why they catch up with Vanessa/Ralph, Art/JJ at RB. This would lead me to believe RB was before Detour, but I have no proof of that.
We know Mark/Bopper are doing speed bump and the skies are blue with clouds. It would indicate some time later than the overcast skies when Dave/Rachel started the race leading again to an extended 24 hour pit start time.
Now the big question comes up even though I've been watching faithfully since Season 1, when teams receive the clue that a FF is available, do they know if it is used yet, or do they have to go to FF location to find that out. I think the later.
Would Mark/Bopper feel that Brenchel or Vanessa/Ralph went for it so would not even try, or would they take a chance?