Bio cremation urns are designed for different uses. Bio scattering urns are made from cardboard and are designed for releasing the ashes at the beach or in the mountains for example. Ground burial bio cremation urns are designed for burying in the soil.
The bio cremation urns on this page that have 'Water' in their title are designed for burying the cremation ashes at sea. Please make sure you select from the 'water' cremation urns if you are planning to release your loved one off the side of a boat at sea. It is important that you travel by boat into deep ocean water to bury any cremation urn. Water burial cremation urns are designed to sink slowly over several minutes.