In the passage below, what does the repeated and unfinished phrase "go near" refer to?
'We can build it just here between the bathing pool and the platform. Of course...'
He broke off, frowning, thinking the thing out, unconsciously tugging at the stub of a nail with his teeth.
'Of course the smoke won't show so much, not be seen so far away. But we needn't go near, near the...'
The others nodded in perfect comprehension. There would be no need to go near.