Karangahake Gorge – Coromandel, New Zealand

February 19, 2026

Emerald swimming hole at Karangahake Gorge along the Ohinemuri River in Coromandel New Zealand

Karangahake Gorge – Coromandel, New Zealand

Carved deep into the Kaimai Ranges, Karangahake Gorge feels like a place where nature slowly reclaimed industry. The Ohinemuri River slices between sheer rock walls, its water glowing jade beneath iron swing bridges and towering basalt cliffs. Ferns cling to the canyon walls, moss softens old stone, and the constant hum of flowing water fills the valley.

The river here shifts personality every few hundred metres. One section rushes white and powerful beneath a dark tunnel mouth; another slows into wide, sunlit pools edged with smooth boulders. In summer, shafts of light break through native forest canopy and illuminate deep green water, creating one of the most atmospheric freshwater swimming spots in the North Island.

It's a place of contrasts — gold-mining relics and lush regrowth, cool river currents and warm sun-warmed rocks, adventure and stillness all wrapped into one winding gorge. For more Coromandel swimming, explore Owharoa Falls or discover other New Zealand swimming spots.

Discover More with Swim New Zealand

Karangahake Gorge is one of many wild freshwater locations featured in Swim New Zealand – North Island, a curated guide to the island's best waterfalls, hidden rivers, geothermal swims, and coastal pools. If you're searching for lesser-known swimming spots beyond the obvious tourist trails, the guide brings them together in one beautifully designed collection. Browse all our New Zealand travel guides.

Map & Navigation

Google Maps:
https://www.google.com/maps/place/Karangahake+gorge/@-37.4221585,175.7220684,16.4z

Closest Parking:
The main car park is located at Karangahake Hall & Reserve directly off State Highway 2 between Paeroa and Waihi. Additional roadside parking areas are scattered along the gorge.

Trailheads:
Tracks begin directly from the main car park, including the Windows Walk, Rail Tunnel Loop, and Crown Mine Track.

How to Get There

Karangahake Gorge sits on State Highway 2, between Paeroa and Waihi in the Coromandel region.

Driving Directions:

From Auckland, drive south via SH1, then connect to SH2 through the Hauraki Plains (approx. 1.5–2 hours).
From Tauranga, follow SH2 north (approx. 1 hour).
From Waihi or Paeroa, the gorge is only 10–15 minutes away.

Look for clearly marked signs for Karangahake Gorge Historic Walkway. Turn into the main car park at Karangahake Hall & Reserve.

From the car park:

The Windows Walk (approx. 1–2 hours return) leads through historic tunnels and along cliff edges.
The Rail Tunnel Loop (easy, 1 hour return) follows the river and crosses swing bridges.
River access points appear along both routes, usually within 10–20 minutes of walking.

Tracks are mostly well-formed gravel, but expect some uneven surfaces and steps.

Seasonal Conditions

Best Season:
Late spring through early autumn (November–April) offers the most comfortable swimming temperatures.

Water Clarity:
Generally clear and green in dry weather. After heavy rain, the river can turn brown and fast-flowing.

Flow After Rain:
Water levels rise quickly following rainfall in the Kaimai Ranges. Strong currents can develop, especially in narrow canyon sections.

Winter Conditions:
The water becomes very cold, and swimming is less common — though the gorge remains beautiful year-round.