Much like last year, people are eager to get out and see the world in 2023. And many travelers want to do that while pedaling a bike, hiking through breathtaking landscapes, or paddling down a river.

In the high-stakes world of adventure travel, the ultimate luxury isn't a five-star hotel—it's the pulse-pounding rush of the untamed. From the jagged Alaskan peaks to the sun-drenched sea caves of ...