How was a group of Chinese boat arrivals reportedly able to walk ashore undetected? | 7.30

Four people-smuggling boats have reached Australian shores in the last seven months. The arrivals have been shrouded in secrecy but we do know that two of the boats landed on an isolated section of coast near the northern-most tip of Western Australia. Reporter Erin Parke travelled there to find out more.
Subscribe: ab.co/3yqPOZ5
Welcome to ABC News In-depth, where you'll find our long-form journalism and other videos to help you understand what's going on in the world around you.
Watch more ABC News content ad-free on ABC iview: ab.co/2OB7Mk1
For more from ABC News, click here: ab.co/2kxYCZY
Get breaking news and livestreams from our ABC News channel: / newsonabc
Like ABC News on Facebook: / abcnews.au
Follow ABC News on Instagram: / abcnews_au
Follow ABC News on Twitter: / abcnews
Note: In most cases, our captions are auto-generated.
#ABCNewsIndepth #ABCNewsAustralia