Pokemon Go on a cruise

Before I went on a cruise this September, I did some googling, and I saw a lot of theorizing online about Pokemon Go on the open water, especially how if you had an Internet connection you'd catch all the water monsters. Buckets full of Horseas and Magikarps and Laprases for days. That is not true.

This picture is a lie, basically.

There are no Pokemon in the Atlantic Ocean or the Carribean Sea or in any body of water as far as I can tell, except on or near the shore. If your cruise line is Royal Caribbean, and you're counting on playing from a private island in the Bahamas, there are none on Coco Cay either. Unless you use an incense then you get a mix of crap and Rares (and a heft international data bill from your cell phone provider).

You also do not get any egg hatching or pokemon buddy candy credit to speak of from the boat moving, the boat moves too fast most of the time. 

Never fear though, you do get all those Shellders, Magikarps and whatnot in Florida (or probably anywhere else your departure port is) on the way.

Also, the ports of call aren't so bad. I had never seen a Magnemite before St. Thomas, but the place was crawling with them. Also Ponytas and Shellders. St. Maartens was less awesome, but still okay.

Local notes: 

JJ Biello is still a good place to stop for Magikarps and Psyducks, only now fewer Magikarps and more Slowpokes.

The Bridgemill pool had Kabutos for a day, so that's the first indication that's a place of any interest.

Suddenly, Badger Creek Park isn't a waste of time and reliably had Eggsecutes (once soccer season was over).
It has changed, two or three times since I first drafted this post, but JJ Biello today has many Vulpixes.