Hainan Island is washed on all sides by the South China Sea, which, as you know, is located in the Pacific Ocean. The three largest bays of the island are Sanya Bay, Dadonghai and Yalunwan. I will tell you about the beaches in these bays.
I note right away that all the beaches on the island are public, so there is no division into types or species here. That is, for example, the beach of Yalunvan Bay is one very long beach several kilometers long.
Sanya bay beach
Mostly Chinese and Europeans rest in this bay, there are very few Russians.
Sanya Bay has the longest beach on the island, its length is about 11 kilometers. It starts from the World's End Park, passes near the airport, along residential buildings and hotels, ending near the Phoenix artificial island. 
The beach is sandy, the entrance to the sea too. The sand is light gray, almost white, very dense, which is especially pleasing to children, because such sand makes excellent castles! And you can also ride bikes and auto rickshaws on it, and the wheels will not even get stuck. There are a lot of small crabs on the beach, which run along the sand, making minks in it.
The coastline is very wide. There is enough space on it for lovers of active games, and for those who prefer to lie down on warm sand, and for those who want to walk along the sea at sunset.
There are free showers and toilets on the beach. For umbrellas and sun loungers belonging to a "not your" hotel, they can sometimes be asked to pay (the price is about 3-4 dollars or 20-30 yuan), sometimes they are allowed to rest on them for free. Apparently, it depends on the mood of the one who is on duty on the beach.
Lifeguards are always watching the vacationers.
It cannot be said that the sea is transparent here, because fine sand always hangs in the water. The color of the water is dark blue, even closer to gray. In this bay, the water resembles the Black Sea.
Palm trees and other trees grow along the entire coast. There are benches and tables under them so that the locals can relax, for example, during lunch, or just hide from the bright sun.
In the morning on the beach you can see those who practice yoga, in the afternoon old people gather here and learn all sorts of dances, wedding ceremonies and photo shoots are often held at sunset. In the evening, a lot of young people gather in numerous cafes located right on the sand. They are similar to our "summer cafes" in the parks, only much larger and in addition to the "bar" they also have a "kitchen". During the day, the “edals” are usually closed, but with the sunset, literally ten or twenty steps from the water, plastic tables with chairs are placed on the sand and the cafe begins its work. The food is only Chinese; instead of a menu, a huge poster with pictures of the finished dish and its price. For example, a serving of glass noodles with shrimp costs about $4 (35 yuan).
All the beaches in this bay are located across the road from the hotels. But there is nothing terrible and dangerous in this, because there is a ground pedestrian crossing near each hotel, that is, you can safely cross the road. Some hotels have an underpass, such as the Pullman Hotel.
From the bays of Yalunvan and Dadonghai, you can come to the beach by buses No. 25, 26. The fare from one bay to another costs about 1 dollar (from 5 to 10 yuan, depending on the distance). You can come by taxi, then the payment will be according to the meter. It takes 10-15 minutes to drive from Dadonghai to Sanya Bay, and about 40-50 minutes from Yalunwan. These buses travel along the sea, so you can get off anywhere you like. To get to the beach, you only need to cross the road.
Dadonghai beach
This bay fell in love with Russian tourists.
The beach in Dadonghai is only 4 kilometers long. It is located between two mountains, so it seems to me that in winter the water here should be a little warmer than in the bays of Sanya and Yalunvan.
The sand is fine, light, crumbly, and not dense, as in Sanya Bay, you can’t ride a rickshaw or a bicycle on it.
The entrance to the sea is sandy, almost everywhere gently sloping. But in some places the coastal bottom was washed away by waves, and rather deep pits formed near the shore. Blue water, transparent, with a suspension of sand near the shore. Sometimes, with strong waves from the sea, it brings small pebbles and shells to the shore.
The beach has free sunbeds, umbrellas, showers and toilets. Lifeguards are located near the main entrance to the beach (next to the Intime Hotel).
But there are no palm trees on the shore, so it will not be possible to hide in their shade. There are a lot of cafes near the beach, mostly with Russian names: "Kievskaya Rus", "At Lena", "USSR" and others. The cuisine is primarily Russian and European, and only then Chinese. Prices are quite democratic: borsch (by the way, very similar to the real one) costs about 1.5-2 dollars (10-12 yuan).
During the day, the beach in Dadonghai is lively and noisy, merchants of pearls, souvenirs and fruits walk along it, crowds of noisy Chinese walk and relax, who like to talk loudly, build sand castles and take pictures.
A violinist plays on the beach near the Resort Intime hotel, it is very pleasant to relax and lie down on the warm sand to his music. But in the evening it is quiet on the beach, because the cafes are not located directly on the sand, but a little further, so that the noise of visitors' conversations is not heard, and you can walk along the coast in silence.
Hotels located on the first coastline have their own territory on the beach, but it is not fenced in any way. Since all the beaches are owned by the state, no one will ever kick you out of the sunbeds, even if they belong to the hotel where you do not live. So you can freely move around the entire beach and settle down in any places you like.
The beach of Dadonghai Bay from Sanya Bay can be reached by bus No. 2, 4, 8; drive about 10-20 minutes. From Yalunvan - No. 15, 25, 29, 24; the journey will take 40-50 minutes. The fare will cost 1 dollar (5-10 yuan); if by taxi, then payment by meter. Stop "Dadonghai Bay" or "Summer Mall". From any stop to the beach, go 5-10 minutes, you can go through the territory of any first-line hotel.
Yalong bay beach
This is the most expensive and luxurious bay on the island. People who prefer a quiet and serene beach holiday rest here.
The sea in the bay is very calm, so the water is clean and transparent. In some places, the bottom is visible at a depth of up to 7-10 meters.
The length of the beach is about 7 kilometers, the width of the coastline is 50 meters. The sand is light, soft and warm.
On the beach, everything is conducive to complete relaxation: there are no noisy merchants, cafes, fuss and screams. Locals almost never come here. For me, it's just too quiet and deserted here.
A little busier near the Lan Resort, because there you can rent diving equipment, ride a banana and other beach attractions:
- diving will cost from 65 to 140 dollars (450 to 900 yuan). Programs are different: a sunken ship, coral reefs, professional diving;
- riding a scooter (only with an instructor) - 23 dollars (150 yuan) for 15 minutes;
- ride on a banana - 15 dollars or 150 yuan;
- fishing on a boat - 60 dollars or 400 yuan, on a specially equipped boat - 153 dollars (1000 yuan);
- sea trip on a boat with a transparent bottom (to view the seabed) - 33 dollars (220 yuan).
On the first coastline there are five-star chain hotels with "their own beach". It is equipped with umbrellas and sun loungers and always has its own rescue point. But, as I said, these are just conventions, of course, there is no territorial division. Relax and swim wherever you want.
You will have to pay for sunbeds from 4 to 7 dollars (30 to 50 yuan); the cost depends on the proximity to the water: the closer to the sea, the more expensive. Showers and toilets are free.
If you live in another bay, then you can get to Yalunwan Beach for 5-10 yuan by bus No. 15, 25, 29 (they go from Sanya via) or by taxi - payment by meter. The price of the bus and taxi depends on the distance of the trip. It takes about 40-50 minutes from Sanya Bay, 20-30 minutes from Dadonghai. It is better to get out on the Central Square, from here it is easiest to get to the beach.
