on canoe trips in Northern Minnesota and the Quetico
  wilderness park in Canada i have been finding more
  "brush" shelters lately..this one was on a large island
   on Snow Bay in the BWCA park..i assume with the new
   survival shows on TV that campers are trying out their
   skills.   

      thats the view looking down on it from the small
    hill it was built against--    

       and a view looking into it..
 someone put alot of work into this.hauling some good
  size logs and cutting others to fit..there were downed
   trees in the area so i was relived to see that live ones
   were not cut to make a "try out" shelter..i have seen
   shelters made right in the main camp from cut down
   and chopped up pines..
   i was windbound and had moved my tent far back into
   the woods to get out of the storm that was blowing
   across the point that the main camp was on..going
   back farther to find wood i ran across this.....
    which brings up this question..first of all i want
    to be found in a survival situation..if i make a
    shelter after swamping my canoe and going ashore with
    just the gear in my Ditch Vest i don't think i would
    do it this far back in the woods..but i don't want to
    be so close to shore that i'm in the wind and rain..
    i know an answer would be "in between" but sometimes
    you need to get away from shore for shelter..how would
    i spot and signal help??..what first came to mind was
    hanging flagging tape and my flasher to attract 
    attention..mulling to over i thought leaving a spare
    whistle and a prepaired note--" i need help-blow 
    whistle i am sheltered in woods"--or something like
    that....any ideas--     

     while this may be nothing too fisherman in a powerboat
   for a solo paddler it's a bad day on the water..