The Devil’s Pool

Twice the height of Niagara Falls, Victoria Falls in southeastern
Africa is the largest waterfall in the world. But for some brave souls,
the top of the Falls is just another swimming hole. With water levels at
their lowest from September to December, swimmers venture into the
Devil’s Pool, an area with minimal current, mere feet from where the
water gushes 355 feet down into the gorge below.
Barton Springs Pool

Fed from freshwater underground springs that were once used for
purification rituals by the Tonkawa Native American tribe, the Barton
Springs Pool in Austin, Texas, covers more than three acres and
maintains a temperature of about 68 degrees year-round. Admission to the
18-feet-deep pool is free from November until mid-March and every
evening after 9:00pm; from mid-March until October, the cost is $3 for
adults and $1 for kids.
Bondi Iceberg public pool

A 15-minute drive from Sydney, Australia, where the country’s
southeastern coast meets the Tasman Sea, sits The Bondi Baths at Bondi
Icebergs. The historic 50-meter public saltwater pool has been around
for more than century and features a small beach, bar, and kiddie
pool—not to mention the occasional wave crashing harmlessly into the
pool. The entry fee ($5.50 for adults; $3.50 for kids) isn’t much
considering the million-dollar view.
Hot Springs National Park

Located in Hot Springs, Arkansas, and designated by President Andrew
Jackson as a special reservation in 1832, Hot Springs National Park, and
the 47, 143-degree springs within the 5,500-acre nature reserve, have
been a sanctuary for those seeking healing and solace for more than a
century.
Johnson’s Shut-Ins

The East Fork Black River in southeastern Missouri cascades over and
around billion-year-old lava rock to form dozens of small rivulets and
wading pools in the 8,550 acre Johnson’s Shut-Ins State Park.
Dudu Blue Lagoon

Does floating in a secluded 100-feet-deep freshwater pool so pristine
that it glimmers with a shade of cobalt blue sound like paradise to
you? Then check out the Dudu Blue Lagoons, located near the town of
Cabrera on the northeastern coast of the Dominican Republic. The lagoon
also features underwater caves, making it a popular scuba diving
destination.