A few notes about the Keweenaw waterway and Portage Lake.
Of course there are a lot of accommodations for food and lodging in the Houghton Hancock area. You actually have 25 miles of waterway to kayak if you want. I imagine it would take awhile to do, but if Clancy Kalmer could swim it, you could kayak it.
Speaking of Clancy Kalmer, I remember when he accomplished the 25 mile swim. I think it took him several tries to do it. I actually went down to the Portage Lake lift bridge to cheer him on as he swam under it.
https://longswims.com/p/clancy-kalmer/
Anyway, I don't have much experience boating on Portage Lake. I did some sailboat racing on big Portage on a friends sailboat a couple of times
from the Onigaming Supper Club.
https://www.onigaming.org/about-us
I also rafted from sunshine beach on portage lake down to the pilgrim river and attempted to paddle up the river only to have our cheap paddle snap in half at about the half way point between the highway and the lake. I still can hear my son curse me out for suggesting such an idea. I figured there was no way to make it back to sunshine beach with only one paddle so we got out into the rough brush along the river and took the raft with us. We slowly made our way up the river to the railroad tracks. Now remember it was rough walking with no shoes on and when we got to the tracks had to step on the railroad ties to avoid all the rocks. Had about a half mile walk back to sunshine beach.
For those that don't know Sunshine Beach was the Houghton City owned beach across from the MTU golf course before the Kestner waterfront park was built. Sunshine beach was better than the existing beach because the water was much warmer, The Kestner park seemed to have much colder water. I spent many hours at sunshine beach swimming laps from shore out to the wooden raft. The beach was sold when Kestner park was built.