So, everyone knows that when you fly in creative mode you can go really fast, right? and you also know that when you swim you go extremely slow? well, I tried combining the two and figured out that the water won't slow you down at all!
Steps to Reproduce:
1. Go into creative mode
2. Double tap spacebar to fly
3. Go underwater and fly around
Environment
Put your operating system (Windows 7, Windows XP, OSX) and Java version if you know it here
Working as intended. Flying in creative should go fast without hindrance. For example, MC-1444 along with other bugs where fixed to make flying in creative more effective.