Resources
Safety guides, breathwork techniques and research to support your cold water journey.
Cold Water Safety
Cold Water Shock
The first 1-2 minutes in cold water trigger an involuntary gasp reflex and rapid breathing. Enter slowly, control your breathing, and never jump in. Give your body time to adjust before submerging your chest.
Never Swim Alone
Always dip with others. This is core to IceBreakers - we go together. Have someone on the bank watching. Know each other's limits and check in throughout.
Know Your Limits
Start with short dips - even 30 seconds counts. Build up gradually over weeks. If you feel numbness, dizziness, or confusion, get out immediately. There's no shame in a short dip.
Health Conditions
If you have heart conditions, high blood pressure, epilepsy or Raynaud's, consult your GP before cold water dipping. Cold water puts significant stress on the cardiovascular system.
Afterdrop
Your core temperature can continue dropping after you leave the water. This is called afterdrop. Follow the IceBreakers warm-out process, build heat gradually from within and listen to your leaders' guidance. Dress warmly once your body begins reheating and avoid rushing into hot showers.
Water Quality
Check water quality before you dip. Avoid rivers after heavy rainfall (sewage overflow risk). Cover any open wounds. Don't swallow the water.
Breathing Techniques
Controlled breathing is key to managing cold water shock and getting the most from your dip. Here are techniques we use at sessions.
Box Breathing
Breathe in for 4 counts, hold for 4, out for 4, hold for 4. Repeat. This calms the nervous system before entry and helps maintain control in the water.
Extended Exhale
Breathe in for 4 counts, then out slowly for 8 counts. The long exhale activates the parasympathetic nervous system, calming the gasp reflex when cold water hits.
Cyclic Sighing
Double inhale through the nose (short + long), then a slow exhale through the mouth. Research from Stanford shows this reduces stress more effectively than meditation.
Post-Dip Grounding
After exiting, stand still and breathe normally. Focus on 5 things you can see, 4 you can hear, 3 you can feel. This grounds the body and eases the transition back to warmth.
What the Research Says
Cold water immersion is an active area of scientific research. Here are some key findings from peer-reviewed studies.
Mood & Depression
A 2018 BMJ case study found that open water swimming led to significant reduction in depressive symptoms, with the participant able to discontinue medication. Larger studies are ongoing.
BMJ Case Reports, 2018
Inflammation
Regular cold water exposure has been shown to reduce inflammatory markers and increase levels of norepinephrine - a hormone that plays a role in attention, focus and mood.
PLOS ONE, 2014
Immune Function
A Dutch study of 3,000 participants found that routine cold showers led to a 29% reduction in sickness absence from work, suggesting improved immune resilience.
Buijze et al., PLOS ONE, 2016
Social Connection
Research consistently shows that group outdoor activities reduce loneliness and improve mental wellbeing. Cold water dipping combines physical challenge with social bonding - a powerful combination for men's mental health.
Mental Health Foundation, 2021
What to Bring
- Swim shorts or trunks
- Towel or dryrobe®
- Warm layers to change into
- Waterproof footwear for the walk in
- Hot flask (optional but ideal)
- An open mind
First Time Advice
Arrive early
Get there 10 minutes before the session starts. Introduce yourself - everyone's been the new guy once.
Go at your own pace
You don't have to get fully in on your first visit. Waist-deep counts. 30 seconds counts. There's zero judgement.
Stay for the chat
The best bit often happens after the dip - warming up together, sharing a brew. Don't rush off.
Mental Health Resources
Cold water dipping isn't a substitute for professional support. If you or someone you know is struggling, these organisations can help.
Samaritans
Free, confidential support 24/7 for anyone in distress.
116 123
Free to call, any time
CALM
Campaign Against Living Miserably - dedicated to men's mental health.
0800 58 58 58
5pm-midnight daily
Mind
Information and support for anyone experiencing a mental health problem.
0300 123 3393
Mon-Fri, 9am-6pm
In a crisis? Text SHOUT to 85258 for free, confidential support via text message, 24/7.
Resource Directory
Organisations, tools and communities we recommend. From mental health support to nature connection - curated by the IceBreakers community.