Pretty straightforward; you need a tube that is 4x4 blocks. I did single clear glass panes every 3 underneath, and a roof of slabs/stairs. I contained the water stream with glow lichen; the single water stream won’t drown them, and will push them. If you get in a boat that’s dangling it will fall, but if you saddle pigs and ride them in the boat, it’s fine.
Pretty straightforward; you need a tube that is 4x4 blocks. I did single clear glass panes every 3 underneath, and a roof of slabs/stairs. I contained the water stream with glow lichen; the single water stream won’t drown them, and will push them. If you get in a boat that’s dangling it will fall, but if you saddle pigs and ride them in the boat, it’s fine.

well thanks! wasn’t sure you’d respond; much appreciated!
i am actually excited to build this… it seems really fun!