‘Diving deep in the ocean without Self-Contained Underwater Breathing Apparatus’
We can describe free diving as that.
However, it can have a different meaning for everyone.
For someone as "freedom"
For someone as "passion"
For someone as "challenge"
For someone as "abyss"
For someone as "communication"
For many as "dream"
Modern free diving started in Italy where people competed who can go deeper into water and catch fish by spears. Even though it has only 60 years of history, now we can go as deep as 120 m (394 feet) or more without mechanic equipment after many free diving predecessors' trials and efforts. We created educational system for free diving based on their techniques, practices, and safety rules. And now through education, any healthy person can go any depth of sea and maximize his/her capability to stay longer underwater.
In order for all of these, safe and systematical education is necessary.