"Though there might be too many options, I still want to see if it's possible." Strange has very obviously been bit by the exploration bug. There's so much to discover, so many options, so many things he wants to learn about Logistykon's skeleton that he doesn't really care about things like 'the depth of the water' and 'the salinity of the water.'

"I suppose this means I need to start researching for a way to breathe underwater. I don't want my studies to end here."

Though how the hell would he start crafting that spell in the first place?