For the first time ever, travelers can join an expedition to the deepest spot in the oceans

Once upon a time, reaching the highest peak on Earth was considered a feat achievable only by a select few.

Fast forward to today.

Though it remains a costly endeavor — and sometimes deadly — it’s logistically easy enough to arrange. Over 4,000 adventurers have climbed to the top of Mount Everest, according to the British Mountaineering Council.

So what’s an intrepid amateur explorer with a thirst for all things rare and superlative to do?

Travel in the opposite direction, of course, to Challenger Deep. Sitting at a depth of 10,928 meters (35,853 feet), it’s widely believed to be the deepest point in the world’s oceans.

In a world-first, travel company EYOS Expeditions has teamed with private undersea diving company Caladan Oceanic to offer general members of the public an opportunity to join an upcoming expedition and dive to the bottom of the Marianas Trench in the western Pacific Ocean.

How rare is this experience? According to EYOS, only seven people on earth have visited Challenger Deep. (Hollywood director James Cameron just happens to be one of them.)

Here’s the catch: The company is only inviting three people to join the trip. Staff tell CNN Travel it’s being offered on a first-come, first-serve basis, and they aren’t releasing any details on the cost. But it’s safe to assume it will be a minimum of $100,000, given dives to the Titanic were expected to cost travelers between $100,000-$200,000 per person.