If you choose to book a stay at a 4-star hotel in Cornwall, you'll typically find plenty of amenities to make sure you're relaxed, such as a gym, pool and restaurant. You can enjoy top-quality service and deluxe accommodations. Go for a 5-star hotel and you'll have access to a few extra perks — think on-site spas, concierge assistance and nightly turndown services. You're likely to get more amenities and exclusive services at a 5-star getaway, though both are great options for luxury guests.