Secession GC outside Beaufort is a study in relationships between the edge of a green and a "penalty area." It's been a couple years since I last played it but in looking at it on Google Maps just now, I was struck by just how many greens have water nearby (all but the 9th, 10th and 12th, by my count, though you could make an argument for 10 and 12). Recalling my rounds there, though, the approach shots don't feel quite as overbearing as one would think because a) the greens are big, b) the greens are relatively modestly contoured and c) only occasionally is the water/marsh really staring you in the face on an approach. More often, the wet stuff is off to the side or the back, such that you mainly take in the apparent generosity of the target first, rather than the water.
There are also some spots where the marsh is at just enough of a remove from a putting surface that it functions more as a psychological than physical hazard. On the excellent short par-5 5th and long par-4 13th, it's 10-12 yards from the nearest green edge. This scales with the longer clubs one is likely to hit into those greens and is just enough of a visual buffer to bait the hook. On 14 and 17, the water creates basically an all-or-nothing proposition, which makes more sense because the player is hitting a short club to the green.