Tidal Zone - Exploring the Oceans Author:John Woodward Contents: The ocean frontier; Your mission; The moon and tides; Mega tide; Pulling the plug; Rip tide; Sea power; Wind and waves; Tidal pools; Clammed up; On the beach; Hidden riches; Mud and marsh; Fuel stop; Seagrass meadows; Turtle nursery; Mangrove swa