Discover Cham Island's vivid coral reefs on full-day snorkelling trips from Hoi An and Da Nang into the Cu Lao Cham archipelago, a UNESCO-listed marine biosphere. This beautiful island is surrounded by a sandy beach, dense tropics, and turquoise, year-round warm waters with colourful fish and corals. The best time for snorkelling is between March and September, and one can purchase full snorkelling equipment and hire a guide for only 10 USD on Cham Island.