Prepare yourself ....
[youtube]http://youtube.com/watch?v=GjYkZh8ZRu8[/youtube]

Whatever you do, when the water is scalding, stay swimming in it and DO NOT go jumping up and down like that person did.

If you jump in and out, you ll get more damage because the "hurting effect" starts ticking the second you enter the water, and since you jump, every time (every second) you get out and in the water you ll get another 500 dmg instead of 500 dmg per 3 seconds or so.