Caving, also known as spelunking and potholing, is the recreational pastime of exploring wild cave systems. In contrast, speleology is the scientific study of caves and the cave environment.
Caving in a muddy section of Black Chasm Cave in California
Stephens Gap, a vertical cave in Alabama
Caving in the north of England, an area that is also popular for pothole exploring
Caver in an Alabama cave showing common caving wear: coveralls, helmet-mounted lights, heavy boots and gloves.
A hobby is considered to be a regular activity that is done for enjoyment, typically during one's leisure time. Hobbies include collecting themed items and objects, engaging in creative and artistic pursuits, playing sports, or pursuing other amusements. Participation in hobbies encourages acquiring substantial skills and knowledge in that area. A list of hobbies changes with renewed interests and developing fashions, making it diverse and lengthy. Hobbies tend to follow trends in society. For example, stamp collecting was popular during the nineteenth and twentieth centuries as postal systems were the main means of communication; as of 2023, video games became more popular following technological advances. The advancing production and technology of the nineteenth century provided workers with more leisure time to engage in hobbies. Because of this, the efforts of people investing in hobbies has increased with time.
Hobby: collecting seashells
In Tristram Shandy, the term "hobby-horse" was used to refer to whimsical obsessions, which led to the current use of the word "hobby".
Writing and editing articles for Wikipedia is a hobby for some people.
There are people who enjoy motorcycle touring alone or in groups, and there are also club teams.
