>>53333397>Don’t know if it’s a lore reason but walking wake can walk on waterOf course it can - it's a Paradox Suicune, and Suicune has been known to walk on water as far back as Version Crystal, where you watch it run off across the sea from Cianwood, as well as near Route 42. In both DLC areas for SwSh, it will also follow you across any body of water if it's your following Pokemon in the Crown Tundra or Isle of Armor, pic related (but not my pic). We see it do so in the anime as well.
So if normal Suicune can do it, why wouldn't Walking Wake be able to as well?
