3. Fresh water isn't stinky and crusty
So you know how when you go for a dip in the ocean and you come out covered in salt crust and with the distinct stench of rotting seaweed? Yeah, that doesn't happen in the Great Lakes. The water may be colder, but it's wonderfully clean.
4. You can still surf on the Great Lakes
Oh yes, we have waves. Lake Michigan gets 2ft-4ft waves in the summer and 4-8 footers in the winter (wear a wetsuit!), though they can actually get as high as 28ft. In fact, Lake Superior can generate waves over 20ft, and it's not uncommon for storm crests to top 30ft (that's what sank the Edmund Fitzgerald, btw -- history!). And even though the water is cold (we mentioned that already, right?), it's not as if the ocean is terrifically warm all around the world at all times, so stop whining.