There's plenty to see and do in the surrounding area - within half an hours drive you can be in Swindon or Oxford, or Bath is but an hour away. Here are some links that might prove useful to you:
City of dreaming spires, colleges, parks, courtyards, Inspector Morse - many tours, river trips to occupy more than one day.
One of England's finest country houses with extensive gardens by Capability Brown and birth place of Sir Winston Churchill. Visit also the adjacent village of Woodstock or Churchill's grave at Bladon.
To the South
Wantage with Downland Museum, White Horse Hill
To the West
Faringdon with local facilities
To the North West
Lechlade - historic Thameside Town