You never mentioned which city you going,(GuangZhou city
itself?"GuangDong" is a province, not a city.) so i cant be very
particular, below is for overall GuangDong area.
SHOPPING(that applies to whole china):
You go there at the wrong time because most of the shops are
selling winter wear already.
Department store that sells branded things, just convert to SGD see
cheap anot, most department store cannot bargarin.
For small shops, MUST bargain.
SAFETY:
GuangDong area is famous for crimes like pick pocket, snatch and
run, and some even more scary method of robbing/stealing you.
If you wear gold chain in singapore, leave it in singapore, dun
wear it there.
Be alert, make sure no one touches you, bump in to you, if they do,
check your wallet.
When something strange happen, like someone spill water to you and
help you wipe your clothes, dun put your attention on your clothes,
make sure no one pull your wallet from behind when the person
infront wipe your clothes.
Try not to use those handphone pouch that attached to your belt.
That's very easy to be snatched.
Amount of money to exchange really depends on how you want to
spend.
But dun bring to much amount of money out, the biggest RMB note is
100, if you keep like 3000RMB in your wallet, it's gonna be thick,
and when you pay money, ppl see your wallet so
thick...........
Dun keep ALL your cash in one place for safety, so that if wallet
got stolen, you can still take out 50RMB from another pocket to
take a cab.
If you happen to take Bus(which i advice you not to), be very alert
esp when it's crowded. Actaully no matter where, when it's crowded,
beware.
Do not trust strangers, do not pity something that you see. ppl who
con others, they make use of your greed or sympathy.
If you carry a bag, keep it slinged on you all the time in public,
with the bad infront of you, not slinged behind.
WEATHER:
Not very cold if compared to norther area of china. check from
http://www.t7online.com/China.htm.
LANGUAGE:
Most ppl speaks mandarin, hardly any ppl can understand
english.
Even you speak cantonese, they know you are not local, cos
singaporean cantonese is very different in terms of the words
used.
ENTERTAINMENT:
Massage is cheap, real cheap, i mean the decent type of massage,
ask a local to bring you to one if you interested, or else you may
end up in wrong type of massage center.
Some hair saloon can do body massage too(also decent one).
I dont know how old are you, if you want to go to "that kind of
places", make sure you ask someone local to bring you there(Not
local taxi driver or wat, i mean someone you know). If you
adventure alone...... you may end up getting charged very expensive
yet u must pay, being robbed, being caught by police(real police
but it's a set up), or really caught by real police doing a raid.
Recently quite alot of raid in Dong Guan city of Guang Dong
province.
Most billiard center got young girls pick up ball for you, count
score for you, replace the set of balls when you finish a game.
Some can even play billiard with you.
Arcade and LAN shop, i dun see a reason why you should go there.
Keep you belongings in your pockets/bags if you go there.