How is the security in Havana, Cuba?

The capital Havana (in the west), the second city Santiago (in the east), the language is Spanish (both the official language and the folk language, there is no indigenous language). It is a tourist attraction with very beautiful scenery, very good air and very strong ultraviolet rays. The currencies are Cuban pesos (CUP) and convertible pesos (CUC). U.S. dollars are not currently in circulation. There are so-called "dollar stores" in every city in the country, which use convertible pesos. Regular stores (peso shops) do not accept U.S. dollars nor convertible pesos. All foreign tourists to Cuba use convertible pesos. Euros can be used in a few tourist spots (such as Varadero, Isla do Sul, Coconut Island, etc.). In terms of economic development, it is far behind China. It is roughly equivalent to China's mid-1980s. The development speed is very slow, but it is developing rather than regressing. The main economic sources are tourism, sugar production (sugar cane industry, including incidental rum production), nickel mining, cigar exports, tropical fruits and their products, and coffee. The social security is good (better than China), relatively stable, and the planned economy is mainly implemented. Medical treatment and schooling are completely free for Cuban citizens, but it is very inefficient. Because of the lack of fuel, transportation is a problem (but the transportation infrastructure is OK). It is an agricultural country, and many industrial products must be imported, ranging from watches, sunglasses, and slippers to buses and trains, so prices are very expensive. There are many old overseas Chinese living in Cuba now, but there are fewer and fewer of them. You can add a question and ask for specific details. I have lived in Cuba for three and a half years and know Cuba very well. Additional answer: That’s good, at least it’s somewhat targeted. The environment in Cuba is very good, the air is very clean and the sky is very blue. The first is because Cuba's industry is very underdeveloped and there is little pollution. Only Havana in the country is more polluted. The city I used to live in is the fourth largest city in Cuba and an industrial city in Cuba. There are only six factories in the city, and one of them is It is a beverage factory with basically no pollution. The second reason is that Cuba has few vehicles and lacks fuel, so there is naturally less exhaust pollution. Third, because Cuba attaches great importance to environmental protection, it has a dedicated Ministry of Science, Technology and Environment to control pollution. Therefore, the scenery in Cuba is very beautiful. Traveling there can cleanse your lungs, but the ultraviolet rays are too strong. Customs and culture of Cuba... Although Cuba is an island country, Cubans have inherited Spanish habits and do not eat much fish and other seafood. Although they do eat it, their consumption is far less than that of other island countries. Cubans prefer to eat pork, and the roasted suckling pig in Cuba is very delicious. Cubans are cheerful and lazy by nature, and can dance when there is music. Like people in other Spanish-speaking countries, they prefer to enjoy life. Cubans are a nation that likes to dance. There is a Fiesta (Party) every night in the school student union, and they always turn up the sound very loudly and dance. But doing things is slow and inefficient, always "momento" (wait a moment) or "maana" (tomorrow). But Cubans are very sincere towards others and rarely make friends with foreigners because of any interests. They make friends purely for the sake of making friends, so you don’t need to be too defensive when dealing with them. Cubans are very interested in Chinese martial arts, and many Cubans learn martial arts in the Chinese district of Havana.