Sanya can be visited throughout the year because of good weather and colorful activities it can offer. Generally speaking, From October to March, is the peak tourist season of Sanya. Especially, national "golden week" holidays are the peak time, which including each first week of Jan, May, Oct and Chinese New Year. These are the busiest time for hotels, airlines and travel agencies, Hotels and airlines would be overbooked. Therefore, the prices for hotels, air tickets and cruises are comparatively higher than usual. We recommend you come to Sanya at off-peak time, and then you can enjoy the same kind of service but with less money.

Chinese Currency
The Chinese currency is Renminbii (RMB or CNY), generally pronounced Yuan in written form, but spoken as Kuai. Note of 1, 5, 10, 20, 50 and 100 are the main paper currency.

Currency Exchange rates　>>

Foreign currency can be changed in most banks and hotels. Exchange rates do not vary that much, so hotels are often the most straightforward place to exchange. It is important to retain exchange receipts, these are needed to convert Renminbi back into foreign currency when leaving China. You may convert up to half of the amount of Renminbi shown on your receipts..Maximum 5000 US dollars are allowed for exchange in one single day.
Cash
Cash is most convenient method of transaction in travel, especially when consuming at small shops in Sanya. Foreign currency, mostly US dollar and Hong Kong dollar are accepted at such places as high-star hotels, golf clubs etc. Except for these locations, cash is king, so it is best to be prepared to get Renminbi for most expenses in Sanya, unless you are going to stay in the hotel for the whole day, and the hotel can charges all expenses to your room.
Credit Card
Basically, credit cards are only accepted in major tourist hotels, shops and restaurants. The locations accepting credits cards would put up a post to remind the guests. But something needs to be cautioned, that is some outlets can only accept Chinese credit cards due to their business nature. Therefore, before addressing your bills, you should check it out so as to avoid involving in trouble.
Traveler's Check
Generally speaking, traveler's check is not quite popular in Sanya, only accepted by some branded international hotels. Note that you will not be able to use traveller's checks directly for purchases.

If your visa will expire soon, your must plan properly in advance: return home or extend your visit? The Public Security Bureau (PSB) of Sanya is entitled to approve extending visas. Therefore, if you want to extend your stay, you can turn to Entry and Exit Division of Sanya PSB to apply for extension. Each application can only extend for 30 days, and be approved for twice only.
If you still want to stay after two extensions, you may have to apply for transfer visa with a third nation, i.e. apply for visa with another country or region. Reentry of China can last for another 30 days and is allowed for another two extensions. The most convenient place is Hong Kong, which is only one hour’s non-stop flight from Sanya.