Sounds like a fairly volatile place to be at the time..
Land -vs- Sea
I am imagining 1000 ft. tides every 18 hours washing inland and colliding with volcanoes / lava and the resulting vapors getting put into the atmosphere each time.
Also with that kind of tidal action, there must have a significant portion of sea beds that got exposed to atmosphere at the same time.
Wow, this would be something to witness (not personally of course).
I wonder if some boffin somewhere has put together a video simulation of what the earth would actually look like - it might be kind of cool to watch.
BTW - why are the Earth's oceans salty? - Where the heck did all of the salt come from?