Seascape is in Beadnell, just up from the beach. It's a modern house, detached. The garden is enclosed, which is good if you've got a dog or kids.
It sleeps eight people. Four bedrooms and two bathrooms, so there's enough space. One bathroom is en-suite to the main bedroom. It's a 4 Star place, so it's well-kept and comfortable.
You're about a five minute walk from Beadnell Bay. It's a great beach, very wide and sandy. Good for a proper walk or letting the dog run. The village has a couple of pubs that do food.
Bamburgh Castle is about ten minutes drive up the coast. It's very impressive. You can also get to the Northumberland Coast National Landscape easily from here. Holy Island is maybe twenty five minutes away, but you have to check the tide times for the causeway.
Further afield, Alnwick Castle and its gardens are half an hour inland. Craster, for the kippers and the walk to Dunstanburgh Castle, is about twenty minutes south.
For facilities: it has a washing machine, dishwasher, WiFi and TV. Parking for two cars on the drive. Bedding and towels are included. You can bring one well-behaved dog.
Some useful links: Northumberland National Park and English Heritage for the castles.