freedivers
Lungful-only deep swimmers
Freedivers are people who dive underwater without breathing apparatus, relying only on breath held at the surface.
The sport emphasizes technique, breath control, and mental discipline rather than equipment.
Competitive freedivers pursue depth records or underwater distance, while recreational freedivers may simply prefer the simplicity and silence of diving without tanks: Freedivers can descend over a hundred meters on a single breath.
Temporary cessation of respiration
- oxygenElement eight, colorless gas
- diaphragmMuscle separating chest, abdomen
- equalizationMaking things uniform
- hypoxiaInsufficient tissue oxygenation
bradycardia · respiration · carbon dioxide · pranayama · eustachian · glottis · trachea · pulmonary
Insulating garment for water
- finsSwimming appendages
- maskFace-worn concealment
- monofinSingle blade for both feet
- snorkelUnderwater breathing pipe
buoyancy · neoprene · weight belt · noseclip · lanyard · spearfishing · underwater · reef
Downward slope or lineage
- pressureForce upon contact
- equalizationMaking things uniform
- fathomNautical depth unit
- plungeSudden steep descent
hydrostatic · abyss · thermocline · narcosis · vertical · blue hole · cenote · record
Focused attention practice
- relaxationState of being unwound
- focusConcentrated attention point
- concentrationSustained single-minded attention
- visualizationForming mental or graphical images
calmness · stillness · zen · mindfulness · composure · equanimity · mental training · body awareness
Traveling through unknown regions
- underwater photographyPhotographing subjects beneath water
- shipwreckDestroyed vessel at sea
- wildlife encountersMeetings with wild animals
- dolphinsSmart aquatic mammals
whales · sharks · manta rays · sea turtles · discovery · expedition · blue hole · travel
Capacity for sustained effort
- trainingDeveloping abilities through practice
- conditioningLearned behavioral adaptation
- resilienceCapacity to recover quickly
- persistenceContinuing despite difficulty
tenacity · determination · tables · yoga · flexibility · cardiovascular · recovery · fitness
apnea
Temporary cessation of respiration
- oxygenElement eight, colorless gas
- diaphragmMuscle separating chest, abdomen
- equalizationMaking things uniform
hypoxia · bradycardia · respiration · carbon dioxide · pranayama · eustachian · glottis · trachea · pulmonary · exhalation
wetsuit
Insulating garment for water
snorkel · buoyancy · neoprene · weight belt · noseclip · lanyard · spearfishing · underwater · reef · ocean
descent
Downward slope or lineage
- pressureForce upon contact
- equalizationMaking things uniform
- fathomNautical depth unit
plunge · hydrostatic · abyss · thermocline · narcosis · vertical · blue hole · cenote · record · monofin
meditation
Focused attention practice
- relaxationState of being unwound
- focusConcentrated attention point
- concentrationSustained single-minded attention
visualization · calmness · stillness · zen · mindfulness · composure · equanimity · mental training · body awareness · presence
exploration
Traveling through unknown regions
- underwater photographyPhotographing subjects beneath water
- shipwreckDestroyed vessel at sea
- wildlife encountersMeetings with wild animals
dolphins · whales · sharks · manta rays · sea turtles · discovery · expedition · blue hole · travel · tropical
stamina
Capacity for sustained effort
- trainingDeveloping abilities through practice
- conditioningLearned behavioral adaptation
- resilienceCapacity to recover quickly
persistence · tenacity · determination · tables · yoga · flexibility · cardiovascular · recovery · fitness · strength
freediversskydivers
People who jump from planes
mountaineers · climbers · aviators · paragliders · land dwellers