Float tanks
What happens in a salt water float session and how to prepare for your first visit.
Written and reviewed by Perth Recovery Guide · Last reviewed 5 September 2026
What float tanks are, and what to expect
Float therapy takes place in a private pod, cabin or room filled with shallow water containing enough magnesium sulphate salt to support effortless floating. Water and air are kept close to skin temperature while light and sound can be reduced, creating a low stimulation environment.
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A short history
Modern flotation REST, restricted environmental stimulation therapy, emerged in the twentieth century from research into reduced sensory input. Contemporary float centres focus less on total sensory deprivation and more on comfortable, optional control of lights, music and the pod lid.
Potential wellbeing and recovery benefits
People use float tanks for different reasons. The most relevant possibilities are:
- A quiet period without phones, conversation or everyday demands
- Deep physical rest because the salty water supports the body
- An environment some people use for relaxation, mindfulness or winding down before sleep
- Emerging research into stress, anxiety, pain and sleep, although results and study quality vary
Individual responses vary. These services are best viewed as optional additions to sleep, nutrition, appropriate training and healthcare, not replacements for them.
How to approach your first session
- Avoid shaving immediately beforehand because salt water can sting small cuts.
- Use the pre float shower and cover minor grazes with the petroleum jelly many venues provide.
- Experiment with arm position and lighting rather than trying to force relaxation.
- Shower thoroughly afterwards and allow a few unhurried minutes before returning to a busy schedule.
This is general information, not medical advice. Ask the venue about its screening and supervision, and speak with a qualified health professional when a medical condition, pregnancy or medication may affect suitability.
Practical considerations
- Tell the venue about open wounds, recent hair dye, contagious skin conditions or mobility concerns.
- People with uncontrolled seizures or conditions that make independent entry and exit unsafe need individual advice.
- Claustrophobic visitors can usually leave the lid open or use an open float room; ask before booking.
Frequently asked questions
Will I sink?
The dense salt solution provides strong buoyancy, so most people float with little effort.
Do I have to close the pod?
Usually not. Many venues allow the lid or door to remain open and let you control the light.
What if I fall asleep?
Some people doze. The salty water supports you, but follow the centre’s guidance and discuss any condition that affects alertness or safe exit.
Is the water hygienic?
Professional venues filter and treat the solution between sessions. If you are concerned, ask the business about its water treatment and cleaning process.