Google "how to build wooden fort", or something similar. Use the plans to build the fort, but instead of building it on the ground, make the foundation a number of stilts planted several feet into the earth. Build the fort on top of the stilts. Be sure to build a ladder or stairs to get in.
stilts
People in the Amazon rainforest build their houses on tall wooden stilts to protect them from flooding during the rainy season, as well as to keep them safe from animals and insects on the ground. Elevating their homes also helps to improve airflow and reduce the risk of moisture-related issues such as mold and rot.
Wooden hootches built upon wooden stilts to keep them above water during the monsoon season.
Some people in the southern United States adapted to Mississippi River floods by building their houses on stilts. The Army Corps of Engineers built many levees along the river to keep flood waters back.
they build tree houses or houses on stilts
they built thier city with tree,wood,and stilts.
It took 8 years to build Fort Sumter.
a pillow fort
The houses that you would build in the Mangroves of Assam would be ones build on stilts. This is done to protect the property from flooding.
The same way you build an 'adult fort', just down size it a little!!
Fort Wayne :)
It is a wooden fort.