IISA medical assessment form
The official IISA form for the medical assessment – completed and signed.
Fri 19 – Sat 20 February 2027 · Neuhermsdorf, Ore Mountains
Zollhaus Open 2027German Ice Swimming Championships
Swimming in ice, in the middle of the forest: 22 races from 50 to 1000 metres in water at around 2 °C – in the natural lake of the Landhotel Altes Zollhaus, 800 metres above sea level, under IISA rules.
✓ IISA rules✓ 25 m pool cut into the ice✓ Hot tub, sauna tent & 4 saunas
22races over two days
2 °Cwater temperature
-d -h -minuntil registration closes
5 lanes25 m pool in the ice
By Addicted To Nature
Swimming in ice, in the middle of the forest.
The 2027 German Ice Swimming Championships take place surrounded by nature at the natural lake of the Landhotel Altes Zollhaus in Neuhermsdorf. Distances range from 50 to 1000 metres – in ice-cold water at about 2 °C.
The hotel sits 800 metres above sea level in the eastern Ore Mountains: at the end of February it is exactly as cold as it should be. A 25 m pool with five lanes is cut into the ice, and all races follow the rules of the International Ice Swimming Association (IISA).
And after your race? A hot tub waits between the hotel and the lake, a large sauna tent right at the competition lake – and four more saunas inside the hotel.
At a glance
- 19–20 FebFriday & Saturday, start 10:00 each day
- 50–1000 mFreestyle, breaststroke, butterfly & relays
- 800 m a.s.l.Landhotel Altes Zollhaus, Neuhermsdorf
- 10 Feb 2027Registration deadline, 20:00
Organiser: Addicted To Nature · Venue: Landhotel Altes Zollhaus
Your first step into the ice
A challenge that suits you.
Whether these are your first 50 metres in ice water or you are already used to freezing temperatures – at the Zollhaus Open 2027 you will find the distance that suits you: from 50 m freestyle up to the supreme discipline over 1000 m.
Nature, adrenaline, sport – and you can catch up on relaxation in the sauna after the race.
“Ride over the ice to melt it.”
Race programme · start at 10:00
22 races, two days.
| Race | Distance | Stroke | Category |
|---|---|---|---|
| 1–2 | 50 m | Breaststroke | Women · Men |
| 3–4 | 50 m | Butterfly | Women · Men |
| 5–6 | 1000 m | Freestyle | Women · Men |
| 7–8 | 200 m | Breaststroke | Women · Men |
| 9–10 | 100 m | Butterfly | Women · Men |
| 11 | 4 × 100 m | Mixed freestyle relay | 2 men · 2 women |
| Race | Distance | Stroke | Category |
|---|---|---|---|
| 12–13 | 50 m | Freestyle | Women · Men |
| 14–15 | 500 m | Freestyle | Women · Men |
| 16–17 | 100 m | Breaststroke | Women · Men |
| 18–19 | 100 m | Freestyle | Women · Men |
| 20–21 | 250 m | Freestyle | Women · Men |
| 22 | 4 × 50 m | Mixed freestyle relay | 2 men · 2 women |
| When | What |
|---|---|
| 18 Feb · 12:00–19:00 | Medical examination (for the 1000 m) |
| 18 Feb · 10:00–19:00 | Race office |
| 19 Feb · 08:00–16:00 | Race office |
| 20 Feb · 08:00–16:00 | Race office |
All races are swum under IISA rules. The organiser reserves the right to change the programme – you can find the latest version on the Addicted To Nature event page.
Attention · Mandatory requirements
Are you ready?
Every swimmer must be able to present these three documents:
ECG
A current electrocardiogram as proof of your heart health.
IISA account
Your profile on internationaliceswimming.com – this is also where you register.
Registration deadline: 10 February 2027, 20:00. As soon as the maximum number of participants in a discipline is reached, registration for that discipline closes immediately – so it is best to sign up early.
Register here →After the cold
Warm up.
Just climbed out of 2 °C water? Then take your pick – and there is hot Bioteaque tea right on the lakeshore.
Hot tub
Between the hotel and the lake the hot tub is waiting – the quickest way back to warm hands.
Sauna tent at the lake
A large sauna tent right at the competition lake: water on the stones, steam, breathe out.
Saunas in the hotel
Four more saunas are waiting for you inside the hotel. Find out more on our wellness page.
Accommodation
Stay just a stone’s throw from the competition lake.
The Landhotel Altes Zollhaus is a historic manor house whose history dates back to the 16th century – and it is only about 300 metres from the natural lake where the races take place. Enchanting atmosphere, modern comfort: the ideal place to stay after a day in ice-cold water.
The restaurant serves regional dishes and Italian cuisine with a pizzeria, and the bar is ready for your post-race drink. Choose your room – from a double room with forest view to a wooden room with a cosy cabin feel.
Good to know
FAQ about the Zollhaus Open
When and where do the 2027 German Ice Swimming Championships take place?
On Friday 19 and Saturday 20 February 2027, starting at 10:00 each day – in the natural lake of the Landhotel Altes Zollhaus in Neuhermsdorf (Hermsdorf, Ore Mountains), 800 metres above sea level.
How do I register?
Registration is handled via the IISA event page; you need an IISA account. The deadline is 10 February 2027 at 20:00, and each discipline closes immediately once it is full.
Which documents do I need?
The IISA medical assessment form, an ECG and your IISA account. For the 1000 m there is also an on-site medical examination on 18 February from 12:00 to 19:00.
How cold is the water and what is the pool like?
The water is about 2 °C. Races are swum in a 25 m pool with five lanes cut into the ice of the natural lake.
Can I stay at the hotel?
Yes – the Landhotel Altes Zollhaus is only about 300 metres from the competition lake. Book your room online, by phone on +49 35057 540 or by email to info@hotel-zollhaus.com. Booking early is a good idea.
Who organises the Zollhaus Open?
The event is organised by Addicted To Nature and hosted by the Landhotel Altes Zollhaus. All races follow the rules of the International Ice Swimming Association (IISA).
More cold, more nature
Discover the Zollhaus.
19–20 Feb 2027 · Neuhermsdorf
Ready? Go!
Secure your starting place at the German Ice Swimming Championships – and your room right next door.
