you have blindsight 20 ft out of water, and 100 ft in water. you can only use this while you can hear yourself making noise (of any type).

you can communicate out to a range of 100 ft underwater.

as an action, you can cast the create effect ofcreate/destroy water a number of times per long rest equal to their level divided by three rounded up. while in water, you may as an action use the destroy feature of the spell to restore one use of this ability but the amount of uses may not exeed your level divided by three rounded up.