Infiniti2000
First Post
Let's look at this again. Ignoring the visibility issue, the table on hampered movement has three options: difficult terrain, obstacle, and impassable. So far, you've apparently assumed this to be difficult terrain, correct? Now, we all know that terrain refers to land, but I'll graciouslyArtoomis said:3. Hampered movement rules exists which are appropriate to use for how to modify flying to work underwater.

The things I want to draw to your attention is that it could also apply to the other two. If we choose impassable, it would be our view. In other words, it's impassable for that mode of movement, much like Flight through solid ground.
The last option, however, is much more intriguing. If water is an obstacle to flight (not unreasonable in concept), then we also have to look at the footnote: May require a skill check. That skill, surely, would be Swim?
