Was it in the White Sea?
The original route was supposed to go through the Baltic Sea, then north to the Arctic. It was supposed to arrive in early September. They had originally planned to load the nuclear fuel while it was still docked at St. Petersburg where it was built, but Greenpeace in Russia, who called it "Chernobyl on Ice filed a petition with thousands of signatures against that plan, and so the plan was changed and the fuel was not supposed to be put into the plant until it docked at its destiny. According to one article, they were going to turn it on this fall, but I haven't been able to locate anything that says that has occurred yet. It's supposed to be replacing two permanent plants that are being shut down.
Probably white water. I wonder if its development corporation?