Yugi figured that well there must be a way for a spider to be able to swim, the train seems to think it might be possible, but Yugi wasn't exactly known for swimming under the water.

But it was the same for above, right? Being careful Yugi looked over at the spider.

"Okay, so when you slowly go under, just start kicking your legs... Or at least all but the two at the front... Hopefully it will help you with swimming."