[A soft laugh. He couldn't exactly insist on someone's help! But the enthusiasm eased him.]

I was thinking to make a map, for passengers. Of the different flowers on the first floor oxygen garden, and where to find them. It would take a great deal of time but it might be very useful.

Wandering is lovely and one needn't always know where they are going; but sometimes knowing the roses from the lilies is a good sort of thing.