Mist Machine

The mist machine allows a player to have all the buffs exclusive to the water while still being able to walk and breathe. It creates a 10 block radius in which the buffs of Conduits and depth strider apply. Riptide can also be used in this radius. The block itself emits a light level of 3 and is the same height as a daylight sensor. The mist would look like a white semi-transparent bunch of particles. It would also have some water droplet particles where it meets a block. When inside the mist a players vision would be slightly obstructed by water droplets on the screen as well as decreased render distance similar to rain on Bedrock edition.  The mist could not go through blocks. The machine would only work when powered by Redstone. When powered it would take around a second for the mist to spread out and activate fully. The machine would be crafted like: 

Water bucket in the middle

Redstone block in the bottom middle

Iron ingots in the bottom corners

Repeaters on the sides

This block would make all of the buffs that only really work in an ocean available even when players don’t live near an ocean.