Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Physical and Mental Activities (hierarchy name)
4. physical activities
5. [physical activities by specific context]
6. [physical activities by location]
7. aerial activities

Anotations

Scope note:

The action or practice of ascending in balloons, which are flexible spherical bags made of a lightweight material inflated with heated air or a gas that is lighter than air. It is both a recreational activity and competitive sport.