How do you get Great View From Up Here in Minecraft?

Defeat the ender dragon and use an end gateway to reach an end city.

What kind of advancement is Great View From Up Here?

Great View From Up Here is a The End tab advancement in Java Edition, of challenge type, rewarding 50XP experience.

Great View From Up Here

Tab: The EndChallengeReward: 50XPDifficulty: Medium

Quick answer: Levitate up 50 blocks from the attacks of a Shulker

Tree path: The End › Free the End › Remote Getaway › The City at the End of the Game › Great View From Up Here (advancements are independent: they can be completed in any order; the tree only guides progression)

Tree parent: The City at the End of the Game

Advancements are exclusive to Java Edition. The Bedrock Edition equivalent is achievements, which have different objectives.

How to get Great View From Up Here

Defeat the ender dragon and use an end gateway to reach an end city.
Let a shulker bullet hit you: it applies Levitation for 10 seconds.
Travel 50 blocks vertically while Levitation is active. The distance counts in either direction and doesn't have to be caused by the levitation itself.
Easiest method: stand at the bottom of a tall end city tower, get hit and float up the open shaft; extra hits from other shulkers keep you rising.
The advancement (and 50 XP) triggers the instant your vertical travel with Levitation reaches 50 blocks.

Tips

The real danger is the landing: when the effect ends you fall. Carry a water bucket, ender pearls or slow falling potions, and never drink milk mid-air, since milk removes the Levitation keeping you up.

More guides from this tab (The End): The End Free the End The Next Generation Remote Getaway The End... Again...You Need a Mint