Click the play triangle above to watch a 20 minute video about the weekend diving trips on the MV Black Manta. Every Friday evening during the southwest monsoon, the MV Black Manta leaves Singapore's Tanah Merah ferry terminal for a weekend's diving in the South China Sea. A surprising, and often delightful, mix of coral reefs, shipwrecks and amazing marine life awaits the divers, within 160 nautical miles of Singapore's urban congestion.