Complex sentence: Today it borders Cumbria to the north, Greater Manchester and Merseyside to the south and North and West Yorkshire to the east, with the county having a coastline on the Irish Sea to the west.
Split into simpler sentences: Today it borders Cumbria to the north, Greater Manchester and Merseyside to the south and North and West Yorkshire to the east. The county has a coastline on the Irish Sea to the west.