Nature, full of mysterious and enigmatic wonders, constantly sparks curiosity and a desire to explore. However, some of these marvels are hidden beneath the ground, and only a few have the chance to witness them firsthand. With today's advancements in science and technology, it's no longer difficult to access these rare, stunning sites. Mytour introduces you to some of the most magnificent underground wonders that are beyond imagination.
Puerto Princesa Underground River, Philippines
The Puerto Princesa Underground River is a UNESCO World Heritage Site. Stretching over 5 miles, it flows beneath a limestone mountain on the picturesque island of Palawan. The river connects to the Cabayugan River and flows into the South China Sea. Visitors can explore the national park, which boasts eight distinct forest ecosystems. The park's rich plant life and vibrant wildlife under the river attract researchers and international tourists alike. Additionally, a tour of the underground river leads you to explore beautiful caves straight out of a mythological tale. This is one of the top destinations for tourism in the Philippines.

Turda Salt Mine, Romania
The massive Turda Salt Mine in Transylvania, Romania, has been mined since the 13th century. Today, it has transformed into a museum and a fascinating underground entertainment center. This center even includes a basketball court and a lake where you can take a boat tour. Interestingly, the climate and nutrient concentration here are highly beneficial for people suffering from asthma or respiratory conditions, making it a popular spot for rest and recovery.

Thrihnukagigur Volcano Lava Cave, Iceland
Thrihnukagigur, an inactive volcano in Iceland, has not erupted in over four thousand years. The landscape here is both unique and captivating to both local and international tourists. What's remarkable is that instead of erupting, the volcano's lava flow cooled and emptied into the ocean, leaving a massive void inside the mountain. Nowadays, a cable car is available to take visitors on a tour inside the volcano.

Hồ ngầm Poco Encantado, Brazil
Hồ ngầm Poco Encantado nằm dọc phía đông dãy núi Chapada Diamantina, Brazil. Đặc biệt hồ ngầm Poco Encantado chỉ có một giếng trời tự nhiên nối thông với rừng rậm nhiệt đới Bahian. Trong khoảng thời gian từ tháng tư đến tháng chín hằng năm, nắng từ giếng trời rọi thẳng xuống mặt hồ, cả mặt hồ phát ra một màu xanh biếc vô cùng đẹp. Độ trong của nước hồ trong trong đến mức có thể nhìn rõ đáy sâu khoảng 60 mét. Dưới đáy hồ là những tàn tích hóa thạch của những thân cây khô và đá tảng từ thời cổ đại.
Động Pha lê, Mexico
Hang động La Cueva de los Cristales mới được phát hiện vào năm 2000 nhờ hoạt động của mỏ khoáng sản Naica, gần Chihuahua. Động Pha Lê mang vẻ đẹp không nơi nào có được với những cột đá, thạch nhũ khổng lồ, lấp lánh được kết thành từ pha lê nguyên khối.
Waitomo Glowworm Caves, New Zealand
The Waitomo Glowworm Caves are located two hours south of Auckland, New Zealand, beneath the lush Waitomo hills. The caves are home to the Arachnocampa luminosa glowworms, which emit a soft, delicate, celestial blue light that attracts numerous visitors to admire their beauty.

Forestiere Underground Gardens, USA
The Forestiere Underground Gardens were created by Baldassare Forestiere, who built an underground house and garden in homage to the tomb-like architecture of his homeland. The architectural marvel of the Forestiere Underground Gardens has become a major attraction for tourists visiting California.
