A survivalist retreat should start off with the most basic of necessities – food, water and shelter. Besides those items, location is very important. Access to running water, wild game animals, land for gardening, and away from the public view should also be important considerations.
The video shows an example of what some people might call a retreat, or a fall back position. The building is miles away from a paved road, is located in an area populated with lots of wildlife and offers enough room for a few people to sleep. The covered front area offers protection from the elements.
The water drum can be brought to a local creek and filled – this makes it good for hand washing, or washing dishes. Keep a few gallons of bleach at the shack – this can be used to cleaning and water purification.
For drinking water, a slow sand water filter could be built. Water could be ported from the creek, poured out into the slow sand filter and made safe to drink.
One of the drawn backs to this type of location, there are no fields for gardening. Until a spot can be worked up to plant a garden, the local area will have to be foraged for wild plants.
Information on edible plants, hunting, trapping, organic gardening and primitive skills should be obtained, and kept at the retreat location. Multiple copies of the same books should be bought. One copy kept at the full time residence and the other copy kept at the retreat. That way the material can be reviewed on a regular basis and understood before it is needed.
For lights, solar cells could be installed on the roof, used the recharge 12 volt batteries and then use 12 volt LED lights inside the shack. This would be much safer then using kerosene inside of such a small area.
Solar powered side walk lights could be used for interior lights. Put the sidewalk lights in direct sunlight early in the morning, let the units charge all day. As the sun starts to go down, move the sidewalk lights into the shelter. These would have the same effect as candles, but without the fire hazard.
Shelters like this are not good for natural disasters – such as a hurricane. Unless the hurricane has made landfall elsewhere.