The most spectacular natural swimming pools in the world

These lakes and sinkholes are the ideal summer heat destination, attracting tourists thanks to the majestic and mineral beauty, clear and cool water.

Hierve el Agua, Mexico : This is one of the most beautiful Central Valley attractions of Oaxaca, Mexico.Hierve el Agua has clear blue water holes located on the top of the hill, believed to contain many healthy minerals.Guests can swim here and see the valley below.(Photo: Toptravelspot).

Sump of To Sua, Lotofaga, Samoa : Located between green trees, To Sua slum pit has beautiful color and is the most attractive destination for Samoa.Many people claim this is one of the most beautiful swimming spots in the world.Visitors can climb down here through a staircase and delight in relaxing in the blue water.Those who are good at diving can explore underground caves leading to the sea.(Photo: Huffingtonpost).

Giola Vung Tau, Thassos Island, Greece : Located in the village of Astris on Thassos Island, Giola is a beautiful natural pool, like a swimming pool carved in stone.To come here, visitors have to walk for quite a long time and the climb down road is not easy, but it is worth the effort.(Photo: Placestoseeinyourlifetime).

Kuang Si Waterfall, Luang Prabang, Laos : The largest waterfall in Luang Prabang attracts tourists thanks to the pristine natural scenery, with a series of large and small blue and green lakes.You can stroll on the bridges, climb to the top of the waterfall where there are more lakes, as well as immerse yourself in the cool water of the waterfall.(Photo: Kirstyburkinshaw).

Devil's Pool, Victorial Falls, Zambia: Victoria is considered to be the world's largest waterfall, with a natural swimming pool at the edge of the falls.Every year, during the dry season from September to December, the water level is lowered enough for the stone barrier to rise near the surface, allowing visitors to swim here and look down at the spectacular scenery below.(Photo: Snopes).

Lake Fairy, Isle of Skye, Scotland : The water here is quite cold but clear, in the middle of the majestic scenery of Scotland.On a beautiful day, this is the ideal place for visitors to relax after a hike to explore the waterfalls and lakes in the area.(Photo: Ishine365.)

River god Hinatuan, Surigao del Sur, Philippines : Located in Hinatuan, this place is known as the spirit river because water appears to have no source.One theory is that caves and underground tunnels provide water for this beautiful natural pool.(Photo: Islandsofthephilippines).

Lake Hamilton, Texas, USA : The lake near Austin is constantly on the list of the best swimming spots in America.Swimming here is like being in a cave with huge sunroof.Waterfall cascades down into the beautiful blue lake, where the fun is avoided by the visitors.(Photo: Onlyinyourstate).

Grotta della Poesia, Rocha Vecchia, Italy : This natural pool is a sinkhole formed from underground caves, with blue and clear water.The cave has two entrances: one at the foot of the cliff and one from the ceiling.(Photo: Pensierinviaggio).

Pit slump Ik Kil, Yucatan Peninsula, Mexico : Located in the archaeological park Ik Kil near Chichen Itza, the sinking hole Ik Kil has a water surface located at a depth of 25 m above the ground.Visitors can follow the stairs down to the sinking hole and delight in swimming in the clear blue water here.(Photo: Tuulavintage).

Poco Azul, Chapada Diamantina National Park, Brazil : Located in the state of Bahia, Chapada Diamantina National Park has numerous waterfalls and beautiful underground river cave systems.However, the park's most popular attraction is the cool swimming pools in the cave.Poco Azul is most famous for having so much water in it that swimmers are like flying in the air.The best time to enter here is from 13h-15h, when the sun shines on, making the blue water glow.(Photos: Pinterest).