*Phu Quoc, Vietnam:* This popular tourist destination is also one of the dirtiest beaches in the world, with plastic waste littering the shoreline.
*Kamilo Beach, Hawaii:* This beach on the Big Island is home to a large colony of monk seals, which are threatened by the plastic pollution that washes up on the shore.
*Guanabara Bay, Brazil:* This bay in Rio de Janeiro is one of the most polluted in the world, due to industrial waste and sewage from the city.
*Serendipity Beach, Cambodia:* This beach in Sihanoukville is a popular tourist destination, but it's also one of the dirtiest, with plastic waste and construction debris littering the shore.
*Juhu Beach, India:* This beach in Mumbai is one of the most popular in the country, but it's also one of the dirtiest, with plastic waste and human waste washing up on the shore.