Denmark · North Jutland (Thy National Park)
Distance
162 km
Date
Entry fee
DKK 800
€ / km
€0.64
Cold Hawaii Ultra 162km: Europe's Flattest 100-Miler, Measured
Cold Hawaii Ultra 162 km is a 100-mile trail race held on September 18–19, 2026, starting at 18:00 on Friday from Grønhøj Strand near Løkken, running through the night and finishing at Vesterhavshytten in Agger, Denmark. The course covers 162.2 km with 690 m of total gain — 4.3 m/km — in a true point-to-point south along Thy National Park's West Coast Trail.
At 4.3 m/km, the Cold Hawaii Ultra 162km is the 3rd least elevation-dense measured course of 383 in the DTR database — only two courses gain less per kilometre. 72.1% of the course is flat; the average uphill gradient of 4.1% makes it the 10th gentlest average climb of 390 measured races. The challenge is the 18:00 night start, the first 81km of unmarked GPS-only navigation in darkness, coastal wind, and the raw weight of 162km of North Sea dune terrain.
The race sells out. Entry costs €0.64/km (800 DKK / €107 before August 16). Nearest airports 2 hours by car. ITRA: 5 points. Founded 2020 / 22 finishers 2024. Suits ultra-endurance runners who want flat miles, wild Nordic atmosphere, and a sold-out 100-miler that most people have never heard of.
Elevation and Terrain
Total Meters
690m
D+/KM
4.3m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
4.1%
Avg Downhill Gradient
-4.1%
Uphill gradient distribution
| 2–5% | 17.6 km | |
|---|---|---|
| 5–10% | 3.6 km | |
| 10–15% | 0.7 km | |
| 15–20% | 0.2 km | |
| 20%+ | 0.1 km |
Route Profile
AnalysedTerrain breakdown
| 13.7% | Uphill |
|---|---|
| 72.1% | Flat |
| 14.1% | Downhill |
Terrain
Cold Hawaii Ultra – 162.20 km 162km Top Climbs
Top Climbs
| 1 | 2.9 km · 52 m gain starts km 36 · avg 1.8% · max 23.2% |
|---|---|
| 2 | 2.3 km · 43 m gain starts km 103 · avg 1.9% · max 12.0% |
| 3 | 0.8 km · 41 m gain starts km 42 · avg 5.2% · max 17.8% |
Top descents
| 1 | 3.7 km · 60 m drop starts km 43 · avg -1.6% · max -21.6% |
|---|---|
| 2 | 4.7 km · 33 m drop starts km 56 · avg -0.7% · max -8.2% |
| 3 | 3.6 km · 31 m drop starts km 48 · avg -1.0% · max -18.9% |
How Flat Is the Cold Hawaii Ultra 162km? (3rd in the DTR Database — and What That Actually Means)
How Flat Is the Cold Hawaii Ultra 162km?▼
Extraordinarily flat — the 3rd least elevation-dense measured course of 383 in the DTR database. The course covers 162.2km with 690m of total gain — 4.26m per kilometre. The average uphill gradient is 4.1% (10th gentlest of 390 measured courses — only 9 are gentler). 72.1% of the course is flat. The biggest single climb rises 52m. The challenge is the 18:00 night start, 81km of GPS-only navigation in darkness, coastal wind, and the sheer weight of 162 kilometres.
Course Profile — Night Start, GPS Navigation, and 162km of North Sea Dune Coast
What does GPS-only navigation mean for the first 81km?
▼
The first half of the 100-mile course (~81km) is completely unmarked — no flags, no ribbons, no signs. Runners must carry a GPS unit or GPS running watch loaded with the official course file and navigate independently through coastal dunes and heathland in the dark. The second half is marked with small orange flags. A GPS unit is mandatory gear.
Sells Out on November 1: Cold Hawaii Ultra 162km Registration Reality
Is the Cold Hawaii Ultra 162km sold out?
▼
Yes — the race sells out. Registration opens November 1 the prior year. With approximately 22 finishers in 2024, it has one of the smallest 100-mile finishing fields in the DTR database. Check thyultra.dk from November 2026 for the 2027 edition.
All-In Entry with Bus Transfer: The Cold Hawaii Ultra 162km's Fee
How much does the Cold Hawaii Ultra 162km cost?
▼
800 DKK (~€107) before August 16, 2026; rising to 1000 DKK (~€134) in the late window. All-in price — no additional fees. Bus transport from Agger to the start is included. At €0.64/km it is competitively priced for a Scandinavian 100-mile race.
Hire Car Essential: Airport Options for the Cold Hawaii Ultra 162km
What is 'Cold Hawaii' and where does the name come from?
▼
'Cold Hawaii' is the local nickname for the Klitmøller area in Thy, North Jutland — Scandinavia's most famous surf destination. The name reflects the powerful, cold Atlantic swells that make it a world-class surf spot, and the exposed, windswept conditions that define the landscape. The race runs through this terrain for 81km, south along the national park coast.
Cold Hawaii Ultra – 162.20 km 162km GPX
Getting to Cold Hawaii Ultra – 162.20 km
Nearest airport
Aalborg (AAL) / Billund (BLL)
Notes
Start: ~2.0 hrs (AAL) or ~2.0–2.5 hrs (BLL) drive to Thy/Klitmøller area / Public transport: not recommended; car easiest / Accommodation: limited in surf towns; book early (summer)
FAR
It’ll possibly take 3+ hours from the closest large airport to arrive. Plan your adventure accordingly, take an extra day for those after-race beers or Curranz.
