RYTON- my specialist topic.
Agree with all the big points above, but:
If going into town the bus service is quite good, then you can leave the car behind. The Metro Centre influence a lot of the bus routes, so beware. Though MC to town has very good links so you can always turn it into a loop and do two in one hit.
The area is just where Tyne and Wear changes to countryside, and you get an interesting mix.
The pubs on the main road in Ryton/Crawcrook are not my favourites, though you can spot lots of chavs. The pubs in the bottom of Ryton Old Village are a bit better and Brian in the Rising Sun in Crawcrook keeps a good pint. He smiles once a decade.
Good food is a bit of an issue. The Ryton Country Hotel and Hedgefield Hotel all depend on the chef and the spotty teenager serving you.
From the Church in Ryton you can drop down to the Tyne and hit cycle/walking/jogging path land. You can then do a nice loop crossing the river at Wylam and Newburn. The Boathouse near the bridge at Wylam does excellent real ale. The Keelmans at Newburn has its own brewery and does half decent pub grub (though not in a Chelsea willy waving manner). The loop is about 6 miles. Deviate half a mile from the loop on the north side and you can hit Close House. This is now owned by the Sage accountancy chap and is pushing hard to be posh. Does very expensive high teas.
If you are a Civil War buff, then there is the Battle of Newburn Bridge to look into.
If you a railway buff then Wylam is full of history, including a little museum where George Stephenson was born.
Two pubs in Wyalm also do half decent bar food – the Fox & Hound and the Black Bull. The Bistro in Wylam won't poison you either.
Hexham has the odd spot to look at, and Corbridge is quite nice.
Prudhoe castle is worth a look in (though nowt like Alnwick).
If you are after full on empty Northumberland and miles of beaches then you will need to get in the car.