This could be really difficult, what with having to drive a Landrover around a twisted course with a blindfold on. Fortunately, the whole task will be made much easier by having your mates in the back calmly giving you insightful advice.
We wouldn't recommend this as a one off event, you'll want to combine it on a multi activity day, but there's nothing like watching your mates make absolute arses of themselves in public. Let's face it, it won't be for the last time on your weekend.