The most common ideas that spires to mind to do a social event that contribute to community is organizing a blood donation event or a clean-up event.

Last December I was in Dhiffushi, for holiday.

To my surprise in Dhiffushi there was a German NGO Ozeankind, conducting a campaign to help cleaning plastics. Along with the support from guesthouses in the Island they were planning a clean-up event.

I was able to interview the German who is leading the NGO.

Apparently, the idea of eradicating plastic from the ocean occurred to them while holiday in Maldives couple a years ago.

Since then they have held few clean up events in different islands alongside an awareness session.

You shall find their interview here.

https://www.youtube.com/watch?v=W-ngsknM8rY