Lagoon
A tsunami crashes into the sun (breaking it in half) and creating a different wing of the tsunami all together. This wing crashes down and creates a lagoon.
The lagoon is beautiful! The water is hot (from hitting the sun) but it isn't so bright that you'll get a sunburn.
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かた
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This lagoon was created on purpose by a really angry dude and his catapult (かた). He wanted a nice place to lounge that's tropical, but not too bright. So he came up with a plan: use a giant catapult to send a tsunami into the sun!
Now picture it all in slow motion. The catapult tosses the tsunami into the air, it smashes the sun, breaks off into a wing of nice, hot water, and finally splashes back to the earth into a beautiful, secluded lagoon.