The point of this entire guide will be speed, by constantly having a speedboost you are near impossible to catch
For the map location, go here if you already know the map well enough
Non map guide there
First off, to safely get to the spot you will want to go behind your house to get the speed powerup
You will then run along the wall untill you get to here
Run forward untill you make it to the tower, turn left and look for this
Once you see the Obelisk looking thing with the speed powerup, walk towards it
Cross the canyon and get up to the powerup, from here you are VERY safe

Once up to the speed powerup, you have a high point that you can see alot of the map from, across where the radiotower is there is an ammo and health pickup, and there is a health pickup in a pit next to the spot and the geocatch on day 4.
You now have an choice, you can either stay there looking for stuff to appear, as any agroed enemys have to take a very long path that allows you to shoot them, or use the infinite speed powerup to get away. Or use the speed powerup as a base, using it for vantage and then exploring for the big squirrel under the effects of speed, always returning to it or another speed powerup before it runs out so you are safe from enemys. Either way you are not going to die unless you are extremely bad