If you are looking to making an interesting run, one option would be to use the runaround system
http://www.runaround.co.uk/ they can be used to connect runs to accomodation where normal connections are difficult. They are not cheap but can be worthwhile to enrich the lives of your rabbits.
I will try and find the link to a thread on heere where there are coms pictures of peoples use of these. The connections to runs and hutches are really useful as I have not seen anything like these before and do make connections really easy.