Aquatic Environments: This comprehensive web-site details the aquatic habitats, animals and plants of Canada. Explore National Parks, go bird-watching or find out which animals live in the water near you.
Australian Marine Conservation Society: An organization that has a unique role in promoting the study and conservation of all aquatic life.
Oceanography For Students: An educational resource from the Office of Naval Research. "More than 70 percent of the planet is covered by water..." and this site is all about it.
Sea Pressure and Depth: Interactive exercise compares water pressure to depth.
Texas State Aquarium Educational Kid's Page: Fun facts and educational games to increase awareness of the Texas Coast marine life.