[ And now Joshua knows why he said to hang on. The wyvern levels out as soon as the twist is done and Khalid gives her a few pats. Murmurs words of appreciation and praise.

Said wyvern gives a low bellow in return. ]

There aren't really massive bodies of water in Almyra to do this sort of thing unless you live along the coast. Derdriu, on the other hand, rests in a bay connected to the Whitehorn Sea. Probably one of the things I miss about living in Fodlan the most.