Parachutes don't aim very well, so I ended up about 200m offshore. A 5-minute swim for Jeb, and Bill sort of exploded when he tried to get the lander out the ocean and to dry land.
From that, I concluded that I need a boat. A boat with rockets on to decelerate into an aerobrake, so I'm not dropping a nuclear-engined interplanetary transfer stage into a planet when I could be making use of it later. And with parachutes to slow down. And wings, so it can navigate to an actual landing side.
I have no idea where to start with this. Or what'll float on Eve and what won't.
I didn't find the right solution from the Internet.