Which travel agencies are better for traveling from Shanghai to Sanya?

I recommend ctrip.com. You can check out their products on the website first and refer to customer reviews before making a decision. If you go to Sanya for about 5 days in mid-March and fly there, it will cost at least 5,000 yuan~~~ but you can only find cheaper hotels. Hotels in Sanya are so expensive~~~~

How much does it cost for a self-guided tour to Hainan from Shanghai?

The price of self-guided tours in Hainan can be divided into several grades. First, a one-day trip to stay in a five-star hotel, diving, and marine entertainment for five days will cost NT$4,000. Second, staying in a family hotel for one day of diving and marine entertainment will cost you NT$3,000 for five days. The key is the ticket price. It will be cheaper to buy your flight tickets 20 days in advance. The round trip from Shanghai to Sanya costs about 1,500 oceans (tax included). I went there in September, stayed in a hotel apartment, took two day trips, and went diving. It's great to eat seafood and barbecue every day, and it cost less than 3,500 yuan a day. Hainan

What are the fun things to do on a self-guided tour from Shanghai to Hainan in December? How much money should I bring?

The price of self-guided tours in Hainan can be divided into several grades. First, it will cost about 4,000 yuan to stay in a five-star hotel for a day trip, diving, and marine entertainment for five days. Secondly, staying in a family hotel, taking a day trip, and diving into the sea for fun will cost about 3,000 yuan for five days. The key is the air ticket. It will be cheaper to book a flight 20 days in advance. The round trip from Shanghai to Sanya is about 1,500 yuan (tax included). Went in August, stayed in a hotel apartment, took two day trips, and went diving. It feels great to eat seafood and barbecue every day, and it doesn’t cost me a penny.