other risks associated with stagnant water are the contraction of illnesses - the often undetectable presence of improvised built or illegal electrical systems can result in water puddles being electrically charged with running power currents - thus, it is good to be aware of one's surroundings and where one is stepping.

depending on the season, the temperatures in a favela can reach extreme levels, especially with their exposed positioning on hillsides and the enclosed tunnels and pathways with little airflow.

visitors should drink plenty of water before entering a favela and bring a source of water to drink while traveling throughout - when thirsty inside a favela, visitors should purchase sealed bottled water from a shop - to avoid sunburn, wearing a hat and sunscreen is recommended, even on cloudy days.