The world is home to an abundance of natural hazards and disasters, but even among the most dangerous species of these threats, there are outliers that rise above the fray. These ten places are home to some of the most extreme conditions known to man.

1) Mount Roraima, Venezuela

Located at the top summit of one of the highest mountains in Guyana, Blood Pond is a terrifying hazard located adjacent to Venezuela’s Mount Roraima.

Often concealed by clouds or mist, the pond (which has its own legends surrounding it) offers no warning before it suddenly gushes with runoff rainwater during storms due to its lack of drainage.

This sure does sound scary, that alone makes it a spot to never visit. But here’s the real kicker: “the pool has a dark red color due to high iron content in the water, which is so acidic that it will quickly erode clothing and even severely burn human flesh.”

2) The Salar De Uyuni Salt Flats, Potosi And Oruro Provinces, Bolivia

The world’s largest salt flat at 10,582 square miles hides a very unfortunate surprise for visitors who choose to ignore the safety warnings. When the dry season ends (usually January or February), its shallow pools begin to fill with rainwater.

As this happens, an underground layer of briny water comes into contact with pockets of natural gas, producing massive quantities of explosive methane. I think you understand where this is going.

3) Takakkaw Falls, Yoho National Park, British Columbia

Canada has a number of locations where beauty almost certainly comes at a deadly price. In Yoho National Park in British Columbia, an unfortunate place to slip and fall would be the long drop from the Takakkaw Waterfall into Emerald Lake below.

The falls are 320 meters (1,050 feet), which is about half a kilometer (~1/4 miles).

4) Batu Caves, Kuala Lumpur

The limestone caves that make up these popular tourist attractions in Malaysia have been attracting visitors for over a century.

What tourists may not know is that they’re actually only allowed to scale 272 steep steps to get to the top of the area that sits near one of the world’s largest Buddhist shrines.

5) Titlis Cliff Walk, Engelberg, Switzerland

The Titlis Cliff walk is a skywalk stretch for adventurous travelers looking to get an even better view than usual while skiing in the Swiss Alps.

The metal pathway connects Titlis Peak to Mount Gotschnagrat at 3,238 meters (10,623 feet).

6) Dachstein Ice Cave Tour, Austria

Caves are inherently dangerous enough without adding ice formations that can collapse and send someone plummeting into ice-cold water below.

Unfortunate tourists who happen upon this Austrian cave tour will need to trudge 424 meters (1,391 feet) up to reach it from its starting point by foot and this will feel like a terrifying climb as the path is only 7 cm (2.8 inches) wide and made entirely of metal grates with no safety rails to catch you if you slip.

7) Haiku Stairs, Hawaii

Known as “the stairway to heaven” or “the ladder to hell,” these 3,922 steps on the island of O’ahu are illegal for tourists who want to travel them due to dangerous landslides that have put many lives at risk over time.

The steep hike up the stairs has also claimed victims by sending hikers tumbling thousands of feet down into valleys below.

8) Angel’s Landing, Utah

An otherwise scenic trail located in Zion National Park is fraught with danger because of its steep incline that can be a challenge even for the fittest hikers. The most dangerous part is a narrow rock fin that you have to traverse with nothing but a chain to hold onto.

If you slip, the only thing that will catch your fall is a straight drop of 1,488 feet into the canyon below–luckily there are sturdy metal chains on both sides of the ridge in order to help people get across it safely.

9) Mount Hua Shan, China

These stairs ascend an extremely steep incline and have been described as “the most dangerous hike in the world,” by travel blogger Richard Grant.

A cable car was set up to accommodate tourists who don’t want to climb or take a bus in order to reach the summit, but many people still risk their lives trying to climb this mountain in the hopes of seeing a sunrise over the surrounding peaks.

10) Capilano Suspension Bridge, Canada

Located in beautiful British Columbia, this bridge spans 223 feet across and is 210 feet high, giving it an even more intimidating appearance when you add in the fact that it has no handrails.

In order to prevent injuries from falls, there are no less than six separate safety features–the guardrails on both sides of the bridge as well as underfoot, two sets of wire cables to hold onto, and steel beams underneath the deck for added support.

If that doesn’t convince you to stay on your best behavior while crossing this attraction, maybe nothing will.

So there you have it, a list of ten of the hardest spots on earth to visit. Between dangerous cliffs and treacherous suspension bridges, you might want to keep your travel plans more low-key in the future.