Yes! I have tested and found out your climax lasts longer without blowing your load yet when submerged in water. The charts i have made:
Dry - 1 second
In the shower - 2 or 3 seconds
Bathtub - 5 seconds
Pool - 6 seconds
It all depends on the pressure, in the shower, no pressure but the water makes it easyer. In the bathtub as small pressure is applied in a small body of water, it makes your climax lasts longer before blowing your load. The larger the of the body of water the more pressure on your penis which means the more orgasm you get.