CLEAN : Guanabara Bay a lot cleaner say sailors ahead of 2016 Games

The video transcript includes an introduction with random phrases, followed by a discussion on boating and sailing experiences, particularly focusing on New Zealand sailors. It concludes with observations on environmental changes and efforts to clean up the harbor.

How did the sailors from New Zealand respond to the challenges they faced?

What does the phrase 'collecting the rubbish' imply about the sailors' activities?