The rules are simple:
All you need to do is take your best shot underwater in your bath. No tub? No worries. A sink or bucket or even a water butt will do.
Get creative with whatever you can find around your home to make your scene. A set of professional-ish judges will decide the winner.
1. Post your photo on your Instagram account
2. Use the hashtag #UnderBathWater
3. Tag @fourthelementdive
You could win £400 of Fourth Element gear!
For more information visit the Fourth Element website by clicking here