21.1 km
6:20 /km
Sunrise half.
Coastal, humid, rolling.
Diamond Head sunrise start, Waikīkī return — no cut-off.
Because moving beside water borrows its willingness; the current does part of the pacing for you.
Humidity teaches restraint — walk when the body asks.
A physical profile — respect the ascents; let the descents restore the breath.
Cool to cold. Layered start, warm dry clothes at bag drop; watch for wind at exposed sections.
A warm regional start — clubs in matching kit, coffee vans, a local mayor with a microphone. Human-scale and unhurried.
Steady, generous local support along the main boulevards and finish straight; genuine strangers-turned-friends handing out orange slices in the suburbs.
Water sections between km 18 and km 24 thin the crowd — breathe long, let the current pace you.
Sealed city tarmac — closed to traffic on race day
Rolling road profile — handcycles handle it with pacing help. Suitable for sturdy strollers on the flatter first and last thirds; expect a couple of longer gradients in the middle.
Ocean float, papaya.

6:20 /km
Sunrise half.
6:50 /km
Beach walk-jog.
5:15 /km
Heat-honest marathon.
Soft, restorative · step-free, wheelchair friendly
Only forward · run with the land
Forest-grounded · deeper trails, longer days
Long, open lines · quiet lanes, long horizons
Shared maps · shared GPX engine · shared Soul Signature language. Whichever door you enter, the craft standard is the same.