Cascade Creek Campsite is a DOC campground situated within Fiordland National Park, alongside the Milford Road between Te Anau and Milford Sound.

Set at the southern end of Lake Gunn, it is a large, open grassy site with capacity for up to 140 tents and is well suited to campervans. Facilities are basic, with long-drop toilets and stream water.

Fires are permitted in designated fireplaces when no fire ban is in effect. Bookings are required and a DOC Campsite Pass is accepted. The campsite sits close to both the Eglinton and Cascade rivers, which offer fly fishing.

The Lake Gunn Nature Walk, a 45-minute loop through moss-draped beech forest, begins near the campsite entrance.

The West Branch of the Eglinton River is also accessible from a small footbridge at the campground, providing a Class II–III packrafting run through native bush downstream to Mistake Creek.

Wildlife commonly seen around the camp includes weka, robins, tomtits, and fantails — along with the area's notorious sandflies.