My first trips as an outdoor educator involved sharing shelters with my co-instructors, people with whom I spent several days getting to know before sharing such close quarters for any period of time. When I was hired to work with Dunn School, it was the first time I found myself in need of a 1-person shelter, as our orientation was short and I would be the primary wilderness instructor on the trip.
After trying out the REI Quarterdome 1 on the first trip, I returned the tent due to its weight, but moreso due to the expense. I wanted something simple, light, and not wildly expensive. Those who have the funds can acquire a sub-1-pound shelter made of cuben fiber for $300-500. Considering the wear I tend to put on my gear and my unpredictable work schedule, I couldn't stomach the expense.
The compromise I landed on was to use an Eno HouseFly Rain Tarp as a ground shelter. At 27 ounces without accounting for ground stakes, it's not the lightest solution, but since I was able to purchase one on sale for less than $100, it was a good compromise.
The tarp comes with quite a bit of cord and I've been able to shed a bit of weight by eliminating the plastic tensioners and connectors tying the lines directly to the straps on the tarp. 10 lines are included (6 for structure and 4 for the doors), and I tend to only carry 6 of the lines.
I set the tarp up with my trekking poles to create an A-frame shelter. I stake the corners directly into the ground for warmth and privacy, and create tension in the ridgeline using a truckers hitch from the trekking poles.
As you can see, there's no floor to this tent, so I have to bring my own. The nice thing about not having a floor is that I can pull my pack into the shelter without worry about dirtying the floor or crowding a vestibule. I sliced open a plastic contractor's trash bag for my floor, on which I place my sleeping pad. I am on the lookout for some discarded Tyvek for the next series of trips, as a lighter alternative.
These photos are from the test run of this set-up at Dunn School before the actual 4-day trip-- always good to practice beforehand! After first setting up the trekking poles handles down and tips through the loop, I decided to try them out handle-up. I like the way the doors sit this way better, though I worry about the force on the material.What I learned during the trip is that since I am 4'11, I can comfortably sleep under the tarp with a trekking pole on only one end, and the other end staked down. I haven't yet had the pleasure of setting this up using trees. I imagine a taller person may want to create more headroom by staking out the corners with cord and having their trekking poles adjusted to be taller. There would be more airflow that way as well.
For those who worry about insects, well, I did find a scorpion underneath my ground tarp while camping in Big Sur that year, but we managed to stay well away from each other. The HouseFly has a few flaps of material that create a sort of barrier between the walls and the ground, but there are those doors. I'm somewhat concerned about mosquitos in my coming work season, but not quite enough to switch to a $200+ set up. Okay, to be honest, I'd probably worry less about the expense for a tent if I were not based in a place as expensive as the Bay Area. We'll see how long the streak can last.
Funnily, the nights that I've slept in my hammock so far have not required a tarp at all, so I've only ever set up this hammock shelter on the ground. There may be cheaper, lighter, and bug-netted options out there if I keep a better eye out for sales, but I've become attached to my improvised solution. And, why carry both trekking poles and tent poles?