From Wooded Gully picnic area walk up Wooded Gully Track through beech forest to the junction with the Ridge Track (2 hr).
This is a popular walk with the whole track passing through native forest to the saddle and crossing the steam twice.
From the junction you can return the same way, climb to the summit of Mt Thomas (30 min) and return via Summit Track, or follow Ridge Track back to Wooded Gully picnic area past the Bobs Camp Biv turn-off.