Okay, I can do "chains"
Cockburn (south australia)
Heathcote (victoria)
Anabranch North (new south wales)
Ibusuki (kagoshima)
Nagashima (kagoshima)
Silverton (new south wales)
Cockburn
Heathcote
Anabranch North
Ibusuki
Nagashima
Silverton
My six letter word will be
VALVES, those little rubber things that stick out of the wheel where you pump up your tyres.