Outdoor

Cricket
Football
Walking - see the 'Let's Go, Bedfordshire!' website. Click a village on the list to see details of walks ranging from 0.5 to 4 miles in length.
Also under walking, see this: Enjoy walking in the countryside? See this programme of organised summer evening walks in and around Renhold!
Another quite informative site is http://www.travelbedford.co.uk/Home.html which covers walking, cycling (and travel by bus, train or car).