I recently build a castle on the beach, and every so often the water comes up under my walls. Fortunately it doesn't damage the bricks, but I kept thinking about it and wondering if I might make a pond nearby just for some lillies or rice or something. Then I remembered lillies and rice aren't in the game, so I just ignored it. Goblins... fuslings, I guess, can swim, so building a moat won't do much, but the deathsquito "wasps" will probably get worse if I did. Hate those things. Anyway, having a water transport thing might give them the wrong idea. I think it'd be better to stick with the way things are now and just add the ability to craft a pond or something with the hoe.