R/coastlineWorldFine.R
    coastlineWorldFine.RdcoastlineWorldFine is analogous to coastlineWorldMedium, but
at higher resolution, i.e. showing more detail.  It may be used for regional
(sub-basin) views, but for coastal work, users should consider downloading a
file at finer resolution.
data(coastlineWorldFine, package="ocedata")The data for coastlineWorldFine were downloaded from shapefile
ne_10m_admin_0_countries.shp, stored at
https://www.naturalearthdata.com.
The documentation for coastline-class in oce explains the
structure of coastline objects and discusses functions that deal with them.
Other coastline files: 
coastlineWorldMedium