Thread:777Xenon/@comment-28259418-20170203132115/@comment-27718903-20170203160639

The water expansions are a glitch related to last Friday's update in which iOS players got new mining expansions. I too have this glitch on my island, although it is only a 4x8 area instead of 8x8. :I

There is nothing you can do to actively get them, to my knowledge, they just appear.