Honestly, it’s been ages since I last got lost wandering near the Coast Guard station, but... if you're heading in from the industrial district toward the station, the last street on your left before the ramp is Demetrov. There are some apartment buildings on the right side of that street with really weirdly designed courtyards—you could check things out there too. Now, if you take the ramp, just go straight for a bit then hang a left; that's where the Senja pier is, I think there’s a spot right there.
But honestly, going over the bridge and hitting the ramp on the right (which technically falls under the Delta area) seems like a better bet. It used to be nothing but wood warehouses and junk, but there’s actually enough room back there to build another boardwalk! Plus, there are like 500 little nooks to hide out in, even if it was 😁. Just see for yourself.
btw—this makes it way easier to follow what I'm talking about 😁
http://www.citymaps.com/cleveland