Guessing more like Breath of the Wild. Jump off something really tall and open something akin to a canopy that lets you fly unpowered over long distances.
Veloren's is much more physics-based than BotW, you can tilt and steer the glider to control your flight. Here's a good video that also shows off the extreme elevation of the world's mountains: https://youtu.be/w-kYWjrU6IE
That looks fun! What happens afterwards? Do you have to spend many hours climbing back to the top of the mountain, or is there some sort of fast travel?
It doesn't take too long to climb back up; unlike Minecraft, you can walk/run up one level of elevation so it's not like you have to hit the jump key a thousand times. No fast travel that I know of, but dying will reset you to the last campfire you touched, so you could use that in a pinch. Also the game is open source, you can compile it yourself and teleport anywhere with dev options, or add the ability to fast travel. :)
