The Foxer

Warm-up Foxer (Where am I?)
I'm standing next to a blue gate. A nearby sign points out (in a language that isn't English) that the gate is an "emergency entrance with manual opening". I can see two orange Bo-Bo diesel locomotives. I'm 500 metres from a Commonwealth War Cemetery containing over 2000 graves and less than a kilometre from an airport named after a composer. I'm in a country with a bigger GDP than Australia and a longer coastline than Argentina. If I circled the globe at this latitude I'd pass over one of the 2018 Winter Games venues. I'm due North of a capital city with a population of more than a million and no railway stations. Visible to the North is a UNESCO World Heritage Site that has given its name to numerous warships. I can see an Opuntia.
Feature Foxer
This enlargeable collage has a hidden theme. Decrypt the cryptic clues to flush it out.
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SOLUTIONS
Last week's warm-up foxer: I was the Dingo Fence (defoxed by Gusdownnup)
Last week's geofoxer theme: clothing (defoxed by ylla and phlebas)
aSark (chrisol)
bAstrakhan (Stugle)
cFair Isle sweater (ylla)
dBra (Gothnak)
eKnickerbockers (Gusdownnup)
fMackintosh (unacom)
gCloak (Gusdownnup)
hCardigan (Gothnak)
iShirtwaist (Stugle)
jTabard (Gothnak)
kBrunswick (Gothnak)
lTank top (Gusdownnup)