Never fly along the shoreline of a river used by large ships.
600' towers live there.

What towers are these? Are you referring to the masts? (Even the
original Queen Mary is only three hundred and something)

Or are you referring to the supports for wires and bridges to cross the
river high enough to let the ship pass?

Jose
--
Nothing is more powerful than a commercial interest.
for Email, make the obvious change in the address.