It feels absurd for me to be fact checking Micah but, yes, I can confirm that Wizard's Tower and 3RS can't target water provinces.
Kelp Fortress was changed from a common to an uncommon site and while I typically play games with few water provinces I have found that you come across it a lot less frequently (but I'm not sure what the percentages are for common, uncommon and rare sites).
Also, welcome back Micah. Having you around to help with answering questions may reduce Calahan's blood pressure.
