Simplify the following text for a Grade 12 native English-speaking person.
Original: Cairnryan is a small Scottish village overlooking Loch Ryan and is notable today for its large modern ferry port which opened in 1973 , originally operated by Townsend Thoresen and now by P&O Ferries , which links Scotland with Larne in Northern Ireland .
Simplified: Cairnryan is a small Scottish village overlooking Loch Ryan and is notable today for its large modern ferry port , operated by P&O , which links Scotland with Larne in Northern Ireland .