We stayed at the Hotel Du Vin, Newcastle which is a chain of hotels. They are very dog friendly. Molly our collie and shitzu cross enjoyed a sausage at breakfast and a warm welcome. We went in July so Molly joined us outside for breakfast.
We went to Longsands for the day and the beach was brilliant as was the small village which is really dog friendly. Most places allowed your dog to join you. We especially liked The Turks Head. A warm welcome, bowl of water and the beer was good too:)