User blog comment:DancePowderer/Shenanigans 506/@comment-3181121-20101125130856

Heat under water isn't that big a problem, there are even underwater volcanoes. And there wouldn't be steam because the pressure is too high for the waterparticles too expand. The leg switching was probably just a mistake on oda's side. What's bugging me about the fight vs. the kraken is the fact that sanji left his bubble. I don't know at what depth they were exactly when they met the kraken but if we assume it was 4-5000m, than sanji would have been crushed the instant he left the bubble. The Elephant gun could work because you can't really crush rubber. But hell, it's a manga (one of the best at that X-D) so I don't really mind the phyics ;-).