Denmark · North Jutland (Thy National Park)
Cold Hawaii Ultra
Distance
162.2 km
Date
September 18, 2026
Entry fee
800 DKK
€ / km
€0.64
Wind, dunes, and North Sea grit: Denmark’s surf-coast ultra with endless runnable miles and weather drama.
Elevation and Terrain
Total Meters
690m
D+/KM
4.25m/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
Route Profile
Analysed 2026-05-01Terrain breakdown
Terrain
Climbs
Top climbs
2.9 km · 52 m gain
starts km 36 · avg 1.8% · max 23.2%
2.3 km · 43 m gain
starts km 103 · avg 1.9% · max 12.0%
0.8 km · 41 m gain
starts km 42 · avg 5.2% · max 17.8%
Top descents
3.7 km · 60 m drop
starts km 43 · avg -1.6% · max -21.6%
4.7 km · 33 m drop
starts km 56 · avg -0.7% · max -8.2%
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)
Q: How flat is the Cold Hawaii Ultra 162km? A: 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
Q: What does GPS-only navigation mean for the first 81km? A: 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.
Sold Out with 22 Finishers: What It Takes to Run Cold Hawaii Ultra
Q: Is the Cold Hawaii Ultra 162km sold out? A: 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.
Getting to Thy National Park: Aalborg Airport, Car Hire, and Where to Stay
Q: How much does the Cold Hawaii Ultra 162km cost? A: 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.
Race files
Logistics
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.
