While travelling across the oceans, visiting beaches, enjoying the sea food, and pursuing recreational activities such as diving, have been an important part of tourism, including providing local people with employment opportunities in many areas, unsustainable practices have also created havoc in the marine world. According to US-based Sustainable Travel International, tourism produces a substantial amount of waste and pollution too – it imposes ‘incredible strain on local waste management systems, causing landfills and sewage plants to overflow. Another major issue is the improper disposal of trash, raw sewage, and toxic chemicals by tourists, hotels, cruise ships, and others’.