The rift has filled with clear, cold glacial meltwater a couple of degrees above freezing. Sounds like a great place to go scuba diving, doesn't it? Here's one picture of the rift from someone who dove down into it.
Looks like a lovely place for a swim, doesn't it? Below is another picture under the water. I found it in a list of "The World's Best Underwater Photographs 2010" and thought it was pretty cool.
Magnus Lundgren/Barcroft Media
The left wall of the rift is North America, the right wall is Europe.