This always gets the pearl-clutchers out of the woodwork - you're gathering a few hundred of the world's fittest people in peak performance mode in the same place for a few weeks, giving most of them a huge amount of downtime, what do you THINK is going to happen? (This is the general 'you', not YOU)
Providing free access to make sure things are happening safely is not what's 'encouraging the behaviour' here :D
Providing free access to make sure things are happening safely is not what's 'encouraging the behaviour' here :D