Deep Under the Water

I've always had this idea for Team Nova's Base. When going to Team Nova's secret base, you will go through many rooms, but one room has a pool of water that you can surf into. However it isn't just a pool, it's the entrance to the lower part of the base which is underwater! You must use surf then dive to enter this place. When you're given the HM Dive, you also receive the Key Item, Diving Gear which just allows you to breathe underwater. When in the lower base area, you swim around and can move over anything except spots where there are many bubbles (not like the ones you see here, but from pumps you'll see many more bubbles) and the stone pillars. You just go around them. You will be challenged to an underwater battle by a few Diving Team Nova Grunts. Finally at the end of the area, you'll find Team Nova Admin Aster who challenges you to a battle. If you beat him, you can leave.
Also. In the games, your Pokemon is shown in a OW when you Fly, Surf, and dive.

Credits:
~UltimoSpriter
=Snivy101
*Kyle-Dove

All Characters EXCEPT Octillery belong to me, =Snivy101