Distance: 4.3 km (4.0 DOC hours) - Unmarked route, clear - Moderate-hard terrain
Altitude: 719m to 1128m. Gain: 218m. Loss: 409m . Gradient: 8 deg
Skills: - Occasional rivers (3/6)

Unmarked route, clear (7/9)
Unmarked route, follows obvious geography (river, spur, trail, etc)

Primary, unmapped (2/5)
Route not on maps, but is principal access to hut or along range / catchment

Unknown (difficulty: 0/5)
Not specified

Moderate-hard (difficulty: 4/5)
Tall, walkable scrub / large rocks, occasional waterfalls or gorges in rivers

Unknown (difficulty: 0/7)
Not specified

Occasional rivers (difficulty: 3/6)
Occasional rivers - impassible after heavy rain

Unknown (difficulty: 0/7)
Not specified

No description

Note: Described in the reverse direction to your journey

Moir's guide provides a very good description of the Otoko route. The initial section from Otoko Lake Flats is through a mixture of fairly open bush, boulder hopping and short scrubbier sections. There are numerous deer trails. The ascent of Harker Torrent is straight forward on tussock and then scree. The valley was filled with avalanche snow from about 1100m at Xmas time.