So perhaps water is to one's advantage. There's the Danube to the south, and the Black Sea to the east, although I cannot advise anything regarding human habitation in either area. I've...seen little of the world, for reasons you have probably already guessed.

[Being here, watching over it all, it isn't possible to follow his father's path of traveling. That has always ached in Alucard's heart, because there was so much more beyond Wallachia. He's never said a word about it though, not even to Trevor and Sypha.]

Constructs can hide in the water, for example, and perhaps might have a fairly high reach all things considered. I'd leave that to your best judgement. The presence of a wide ocean or stretch along the river would probably appeal to Isaac's sensibilities, based on what you've said.