boats are 2x faster

It's not a bug, it's a feature, and it's part of the normal game system. It's like that in real life too.

Hi!
Thank you for your report!
However, this issue is Working As Intended.

Please note, that mechanics of the game may change between updates.
Things such as graphics, sounds, world creation, biomes, Redstone, villagers, and animals may not work the same in current versions.

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