If you are only ONE Girl, I would suggest you to go to Singapore or Taiwan.
Taiwan is closer than that of Singapore and all the people can speak Chinese.
You may have a walk at the book shop and state in coffee shop for whole day.
Also, you may visit the local market and food stuff at night.
The Hot Spring is very famous and you can find one Hot Spring House/Resort to escape from the city or people.
For Singapore, the flight time around 3.5 hours. Actually it is the same style as HONGKONG but you would face to a lot of different people. They speak very different from HK. English, Chinese, Malaysia, India etc.
You may go to Sentosa for whole day, also the Singapore Zoo is a good place to spend for whole day. THe wild live animal is very attactive.
Also, you may walk around all local market to experience the mixed culture and meet more people.
The last choice, I would suggest Lamma Island. I've been living in Lamma Island for 2 years before. It is a very good place as well as there was no car on the island. To rent a house for a week just cost $1XXX and which is much cheaper than going other country.
Wish it can help you.
www.visitsingapore.com
www.taiwan.net.tw