The document provides information about various snorkel trails around the world that help conserve and educate about coral reefs, including: - Details on location, available guides, signage, and sponsors for over a dozen snorkel trails internationally. - An overview of Honolua Bay's snorkel trail in Maui, its educational outreach programs, and measurable outcomes like scientist monitoring of the reefs. - How the Cherish the Living Reefs project in Maui works with nature, employs and trains local youth, and partners with the community to sustainably maintain the snorkel trails.