The Chasm Walk

What you’ll see

A short stroll through dense native forest leads to bridges and viewing platforms over the Cleddau River, where thunderous waterfalls have carved smooth basins and swirling potholes into the bedrock. It’s a compact, high-drama snapshot of Fiordland’s power: roaring water, mossy greens, and rock sculpted by centuries of gravel grinding in circular eddies.

Trail basics

This is a very easy, well‑formed track of about 0.25 miles total (400 m return), usually done in 15–20 minutes. The path is mostly flat gravel with boardwalk sections and sturdy railings. It’s free, self‑guided, and starts from a dedicated car park directly off the Milford Sound Highway.

Best time to go

Year‑round works, but the Chasm shines after rain when the river is up and the waterfalls boom. Fiordland is wet by nature—bring a rain layer—and expect surfaces to be slick when it’s raining. Light can be dim in the forest; overcast or wet days actually help the greens pop for photos.

Know before you go

Stay on the track and use the railings—the water is fast and the drops are unforgiving. Expect spray and noise near the viewing areas. The walk is suitable for most ages and abilities, including those with limited mobility, but it is not explicitly rated as wheelchair‑accessible. No permits or fees are required. The track was damaged in a major storm in 2020 and has been repaired; after heavy weather, check current status before you go.

Is it worth it?

Yes—especially if you’re driving Milford Road anyway. It’s a minimal time investment for a big sensory payoff. Just know it’s over quickly; if you’re hunting for a longer hike, pair this with other short stops along the highway.