The hunt for the elusive New Zealand otter

There have been at least 50 sightings of animals that resemble otters in New Zealand over the years.

There have been at least 50 claimed sightings of the native otter, including by Captain Cook. Source: Seven Sharp

Captain Cook has even been recorded as having spotted one.

So, does the elusive creature actually exist?

TVNZ1's Seven Sharp sent Julian Lee to Otautau in the South Island to try and find the legendary waitoreke.