Ko Samui is an island off the east coast of the Kra Isthmus, Thailand. Geographically in the Chumphon Archipelago, it is part of Surat Thani Province, though as of 2012, Ko Samui was granted municipal status and thus is now locally self-governing. Ko Samui is Thailand's second-largest island after Phuket, with an area of 228.7 km2, a population of over 63,000 and a hotel occupancy rate of 73 percent as the number of visitors continues to increase. Abundant tourist resources, sandy beaches, coral reefs, and coconut trees are present on the island.

Bangkok is the capital and most populous city of Thailand. It is known in Thai as Krung Thep Maha Nakhon or simply Krung Thep. The city occupies 1,568.7 square kilometres (605.7 sq mi) in the Chao Phraya River delta in central Thailand, and has a population of over eight million, or 12.6 percent of the country's population. Over fourteen million people (22.2 percent) lived within the surrounding Bangkok Metropolitan Region at the 2010 census, making Bangkok the nation's primate city, significantly dwarfing Thailand's other urban centres in terms of importance.

Bangkok is the capital and most populous city of Thailand. It is known in Thai as Krung Thep Maha Nakhon or simply Krung Thep. The city occupies 1,568.7 square kilometres (605.7 sq mi) in the Chao Phraya River delta in central Thailand, and has a population of over eight million, or 12.6 percent of the country's population. Over fourteen million people (22.2 percent) lived within the surrounding Bangkok Metropolitan Region at the 2010 census, making Bangkok the nation's primate city, significantly dwarfing Thailand's other urban centres in terms of importance.

Ho Chi Minh City, also known by its former name of Saigon is the most populous city in Vietnam with a population of 8.4 million (13 million in the metropolitan area) as of 2017. Located in southeast Vietnam, the metropolis surrounds the Saigon River and covers about 2,061 square kilometres (796 square miles).

Under the name Saigon, it was the capital of French Indochina from 1887 to 1902 and again from 1945 to 1954. Saigon would later become the capital of South Vietnam from 1955 until its fall in 1975. On 2 July 1976, Saigon merged with the surrounding Gia Định Province and was officially renamed Ho Chi Minh City after revolutionary leader Hồ Chí Minh (although the name Sài Gòn is still widely used).

Ho Chi Minh City is the financial centre of Vietnam and is classifed as a Beta+ World City by Globalization and World Cities Research Network. It is home to the Ho Chi Minh City Stock Exchange, the largest stock exchange by total market capitalization in Vietnam and the headquarters of many national and international banks and companies.

Ho Chi Minh City is the most visited city in Vietnam, with 6.3 million visitors in 2017. Many of the city's landmarks which are well known to international visitors include the Bến Thành Market, Ho Chi Minh City Hall, Notre-Dame Cathedral Basilica of Saigon, Independence Palace and the Municipal Theatre. The main passenger airport serving the metropolitan area is Tan Son Nhat International Airport, it is the busiest airport in Vietnam handling 36 million passengers in 2017.

Ho Chi Minh City, also known by its former name of Saigon is the most populous city in Vietnam with a population of 8.4 million (13 million in the metropolitan area) as of 2017. Located in southeast Vietnam, the metropolis surrounds the Saigon River and covers about 2,061 square kilometres (796 square miles).

Under the name Saigon, it was the capital of French Indochina from 1887 to 1902 and again from 1945 to 1954. Saigon would later become the capital of South Vietnam from 1955 until its fall in 1975. On 2 July 1976, Saigon merged with the surrounding Gia Định Province and was officially renamed Ho Chi Minh City after revolutionary leader Hồ Chí Minh (although the name Sài Gòn is still widely used).

Ho Chi Minh City is the financial centre of Vietnam and is classifed as a Beta+ World City by Globalization and World Cities Research Network. It is home to the Ho Chi Minh City Stock Exchange, the largest stock exchange by total market capitalization in Vietnam and the headquarters of many national and international banks and companies.

Ho Chi Minh City is the most visited city in Vietnam, with 6.3 million visitors in 2017. Many of the city's landmarks which are well known to international visitors include the Bến Thành Market, Ho Chi Minh City Hall, Notre-Dame Cathedral Basilica of Saigon, Independence Palace and the Municipal Theatre. The main passenger airport serving the metropolitan area is Tan Son Nhat International Airport, it is the busiest airport in Vietnam handling 36 million passengers in 2017.

Nha Trang is a coastal city and capital of Khánh Hòa Province, on the South Central Coast of Vietnam. It is bounded on the north by Ninh Hoà district, on the south by Cam Ranh town and on the west by Diên Khánh District. The city has about 392,000 inhabitants, a number that is projected to increase to 560,000 by 2015 and 630,000 inhabitants by 2025. An area of 12.87 square kilometres (4.97 sq mi) of the western communes of Diên An and Diên Toàn is planned to be merged into Nha Trang which will make its new area 265.47 square kilometres (102.50 sq mi) based on the approval of the Prime Minister of Vietnam in September 2012.

Nha Trang is well known for its beaches and scuba diving and has developed into a popular destination for international tourists, attracting large numbers of backpackers, as well as more affluent travelers on the south-east Asia circuit; it is already very popular with Vietnamese tourists, with Nha Trang Bay widely considered as among the world's most beautiful bays. Tourists are welcomed to participate in the Sea Festival, held biennially. Nha Trang was the site of the Miss Universe 2008 Pageant on July 14, 2008 and Miss Earth 2010 was held on December 4, 2010. It was also the site for the April 14, 2015 season 8 finale of Face Off. Nha Trang was approved to host the 2016 Asian Beach Games.

Historically, the city was known as Kauthara under the Champa. The city is still home to the famous Po Nagar Tower built by the Champa. Being a coastal city, Nha Trang is a centre for marine science based at the Nha Trang Oceanography Institute. The Hon Mun marine protected area is one of four first marine protected areas in the world admitted by the IUCN.