Not quite sure of understanding the whole paragraph referring to the building of a boat set for a movie.
Filmmakers have to shot a sequence on a river with a pirate boat -oriental entourage-. But river water levels are so low that what they want to is getting very difficult to attain. paragraph is as follows:
"One of the most challenging, and unexpected, difficulties involved water levels; they dipped so low that the coastline where the pirate boat set was constructed -and floated- had to be reset. Production designer and his crew eventually built the set on a barge so that it could recede along with the coast line and they would not have to scout another place."
Main problems on my side are:
1) Is Pirate boat set a pirate boat replica or the place, kind of dockyard, where the boat is built?
2) The sentence: "...so that it could recede along with the coast line end they would not have to scout another place." not quite getting it. Is it saying that the barge is turned into the pirate boat set which, because floating, allows to get away from the shoreline when water is low; or is it saying the dockyard-like is becoming a floating one to avoid problems with water levels and shoreline and doing that, pirate boat can be made inside without any other water problems ? relation barge-shore not quite caught on my side.
Very blurred. If there is any other nuances and meanings you find I'm missing it would be extremely helpful to me you explain it.
Thank You very much for your kind attention in advance.

