A Vietnamese tour operator has seen an opportunity to promote Vietnam’s beautiful nature to the world when Hanoi is poised to host the second summit between leaders of the U.S. and North Korea next week.

Oxalis Adventure Tours, which organizes commercial tours to Son Doong, has surprised Facebook users over the last few days with photos and videos of their exploring crew holding the national flags of the U.S., Vietnam and North Korea amid the remarkable natural beauty of the world’s largest cave.

The photos and videos were all captured at the prominent discovery sites in the cave system in the north-central province of Quang Binh, according to Oxalis.

The images of the national flags are symbol of peace, friendship and wishes for successful outcomes of the second summit between U.S. President Donald Trump and North Korean leader Kim Jong Un scheduled for on February 27-28 in Hanoi, the company said.

These media products are meant to promote Vietnam’s tourism, according to Nguyen Chau A - owner and general director of Oxalis, taking advantage of the headline-grabbing event to capture attention of people around the world.

A said that “each person, each agency has a different role in this historic event,” while for him, he thinks “Vietnam’s tourism and hospitality industry, besides offering their best services, should take this chance to promote Vietnam’s natural beauty to international friends.”

“The simplest and most low-cost way to do so is taking photos, filming and recording your greetings at places with beautiful landscapes and uploading them on social networking sites,” A said.

“[If we all do that,] we will all create a great impact for the country’s tourism promotion.”

The upcoming Hanoi summit is Trump and Kim’s second meeting in less than a year after a historic summit in Singapore on June 12, 2018.

On Wednesday afternoon, a Boeing C-17 Globemaster III aircraft, the third one this month, landed at Noi Bai International Airport in the Vietnamese capital city, carrying a helicopter and other equipment for President Trump’s upcoming visit.

Journalists from foreign news agencies and media outlets have also started to arrive in Hanoi and station themselves at critical locations to capture the early preparations for the summit. Around 3,000 journalists and reporters will be working from here during the high-profile event

Below are some of the photos, courtesy of Oxalis.

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