The best running trails in Nanakuli Forest Reserve
4.8
(3)
261
runners
9
runs
Last updated: September 12, 2025
1
runners
1. Mermaid Tunnels loop — O'ahu
6.66km
00:42
70m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
8
runners
2. Ko ‘Olina loop — O‘ahu
6.32km
00:39
30m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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3. Nānākuli loop — O‘ahu
6.95km
00:43
30m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
136
runners
4. Ko Olina Beach loop from Kahe
4.67km
00:29
20m
Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
106
runners
5. Running loop from Kahe
7.03km
00:44
30m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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