mcoast(map_boundaries = "on", map_coastline_resolution = "high", map_coastline_land_shade_colour = "cream", map_grid = "on", map_coastline_land_shade = "on", map_grid_colour = "tan", map_coastline_colour = "tan", map_grid_latitude_increment = 2.00, map_grid_line_style = "dot", map_grid_longitude_increment = 2.00, map_boundaries_colour = "red", map_grid_latitude_reference = 0.00, map_rivers = "on")