I have moved house twice with my cat and was frightened to let her out when i first moved and tried to keep her in but after 3-4 days i had to give in. The second house move she was out on day 2!!! firstly just in the back garden and in the wooded area at the back of the house, but now i dont know how far she goes, she's sometimes gone for hours!! I guess you'll know when to let her out and like another post has suggested, stay close to her the first few times, if you want to encourage her to stay at the back, only use this way to put her out and call her in. Good luck