Access to Rosewall Creek Falls, also known as Therriault Falls, leads through Rosewall Creek Provincial Park. The falls, however, are located outside the park. Shortly before the falls, the trail branches off, and alternative routes lead steeply upwards - there is no longer a clear route. Dense foliage prevents a good view of the falls. We were out on the trail on May 10, 2025, and finally found a viewpoint of the falls while descending the steep slope.
During the dry season, the trail can be hiked without any major problems.