Costa Rica, the full name of the Republic of Costa Rica, has an area of ​​51,100 square kilometers. Located in southern Central America. It borders the Caribbean Sea to the east, the Pacific Ocean to the west, Nicaragua to the north, and Panama to the southeast. The coast of Costa Rica is plain, while the center is cut off by rugged mountains. The country declared its exclusive economic zone to be 200 nautical miles and its territorial sea to be 12 nautical miles. The climate is tropical and subtropical, and part of it is neotropical.

Costa Rica was originally a place where Indians lived. Columbus discovered Costa Rica on September 18, 1502. It became a Spanish colony in 1564. It is under the jurisdiction of the Guatemala Metropolitan Government of the Spanish Governorate. Independence was declared on September 15, 1821. Joined the Central American Federation in 1823 and withdrew from the Central American Federation in 1838. The Republic was established on August 30, 1848.

National flag: It is rectangular, the ratio of length to width is about 5:3. The flag surface is composed of five parallel wide strips connected in sequence, from top to bottom in order of blue, white, red, white, and blue; the red part is painted with the national emblem on the left side. The blue and white colors come from the colors of the former Central American Federation flag, and the red part was added when the Republic was established in 1848.

Costa Rica has a population of 4.27 million (2007). The official language is Spanish. 95% of residents believe in Catholicism.

Costa Rica's economic development level is among the best in Central America, with a per capita GDP exceeding US$4,600. Colombia is rich in natural resources, with bauxite reserves of about 150 million tons, iron reserves of about 400 million tons, coal reserves of about 50 million tons, and forests covering an area of ​​600,000 hectares. Its industries are dominated by light industry and manufacturing, mainly including textiles, equipment, food, wood, and chemicals. Agriculture mainly produces traditional products such as coffee, bananas and sugar cane. Colombia is the second largest banana exporter in the world, second only to Ecuador. Coffee is the second most important product of Colombian agriculture.

San Jose: San Jose, the capital of Costa Rica, is located in a valley in the central plateau of Costa Rica, at an altitude of 1,160 meters, and is the highest capital in Central America. San Jose has a tropical plateau climate, with temperatures ranging from 14 to 21°C, with an annual average temperature of 20.5°C. The rainy season is from May to November each year, and the dry season is the rest of the year, and the climate is cool. The average annual precipitation is about 2000 mm.

After the Spanish conquered Costa Rica, the earliest political center was in the city of Caltago in the eastern part of the central plateau. At the end of the 16th century, residents began to migrate to the Central Valley. In 1814, the Catholic Church established the first school here, the St. Thomas Educational House. After Central America became independent from Spain in 1821, San Jose became the capital of Costa Rica. On September 15, 1821, Costa Rica declared its independence and established a republic in 1848, with San Jose as its capital. In the 1940s, San Jose was the national coffee production center. After the 1950s, with the development of industry, the city developed rapidly, and San Jose is now a modern city.

San Jose is a famous tourist city, and there are many famous tourist attractions nearby. Boas Volcano is located in the northwestern part of the Central Valley, 57 kilometers away from San Jose. The volcano first erupted in 1910. Visitors can see this active volcano which is still slowly moving on the lookout platform. There are two lakes in the crater with a diameter of 1,600 meters at the top of the volcano. The lake above is clear and translucent, surrounded by various green plants. The lake below has a large amount of igneous rock material with high acid content. Due to volcanic activity, bursts of white gas erupted from the lake, making a huge boiling sound, and then a huge water column of more than 100 meters high was set off to form the largest geyser in the world. With changes in temperature and volcanic activity, the color of the lake changes, sometimes blue, sometimes gray.