The term "nature-solo" in a porn video tag refers to a solo scene set in an outdoor natural environment. This typically means that there is no interaction with other individuals and the setting for the scene is surrounded by nature, such as forests, beaches, mountains, or meadows. These types of scenes often highlight the connection between the performer and their natural surroundings, emphasizing a sense of freedom and unity with nature. As this tag indicates a solo act, there is no interaction with other individuals involved in sexual activities, focusing on self-pleasure and exploration of one's own body