If you see it firsthand at Elephanta, you’ll be stunned.” Environment activist Nandakumar Pawar is not talking about the iconic Sadashiva sculpture at the UNESCO World Heritage Site. Rather, a one-km stretch on the island that has been completely taken over by plastic. Pawar, senior project head at Sagarshakti, the marine conservation arm of Vanashakti, will join nearly 50 local fishermen in an ambitious clean up this weekend. They could use a helping hand from you.

The effort follows a long survey of the island conducted by Pawar and a team of fishermen last monsoon, which revealed immediate, key threats to the local flora and fauna.