I was cruising down alter the other day checking out some of the old canal homes and whatnot in the area. As I got to the very end of alter right next to angel park and mariner park there looks to be a new building going up possibly a marina or a water sports activities center. I think this might be the old riverside boat ramp/ marina but I donÂ’t know enough about this area and hoping someone else did. By the way, those steets along the canals there are very interesting. Klenk, alter, and harbor island all possess a very cool boaters paradise type of feel. Now if they could eliminate some of the abandoned/ burned down homes between the nice ones, I think things could really start to trend upwards there, given the location so close to Grosse Pointe.