I have carried these cases in a chest pack (front portage pack) attached to the shoulder straps of my main portage pack (GG or Duluth Pack). Hard plastic cases are bulky but should float with most cameras and having the case more or less in its own bag keeps it handy and still easy to carry. Most of the time in the canoe I just set the case (closed) on the floor between my feet.
I've only taken mine a few times. When I do. I carry it in hand while portaging my gear pack. I prefer to not have anything in my hands (except maybe a hiking stick) while portaging but I make an exception for the Pelican case.
I've been carrying my camera (not an SLR but a bigger digital with a really big zoom...it looks like an SLR if you don't know better) in a bubble wrapped lined waterproof dry bag, one of the smaller clear ones from Seal Line (I think). This bubble wrap lined bag is the poor man's Pelican. LOL. Anyway, while I could clip it onto a pack, I've been hand carrying it. I generally discourage hand carrying, but it's really not that big a deal if you just have something in one hand, it's comfortable to carry, and not heavy. I guess I would rather carry it than risk bonking it around while it's clicked to my pack; I could see squashing it when I put the pack down. Though I guess with a Pelican you would not have to worry about that. What are the handles like on a Pelican case? That would influence my decision, too.
quote PJ: "I've only taken mine a few times. When I do. I carry it in hand while portaging my gear pack. I prefer to not have anything in my hands (except maybe a hiking stick) while portaging but I make an exception for the Pelican case." I too carry mine in hand. In the canoe, I attach it to a thwart with bungy/carabiner combo. TW
"Let us live so that when we come to die even the undertaker will be sorry." Mark Twain
I two put a small one in my front portage/thwart bag.
Here's what use for my thwart/front portage bag: Cabelas Carry-on The picture makes it look larger than it is. It's really quite compact. I'll try to get a picture of mine next to stuff for better proportion.
Also, don't buy it at this price. These are often on sale for much less.
"You guys might not know this, but I consider myself a bit of a loner. I tend to think of myself as a one-man wolf pack." - Alan Garner, The Hangover.
I use this water proof case from Plano. When in the canoe its untethered on the floor close at hand. I think I'd have to fill it with lead to sink it. On the portage it is either carried by hand or binered to a pack.