Our Navy Journey Biodegradable Cremation Urns are handmade using a centuries old papermaking technique. First, the bark from the mulberry tree is harvested, leaving the tree alive and intact. After the bark is soaked, the resulting pulp is laid out on bamboo screens, often with floral material inlaid, and dried in the sun. Once dry the paper is used to create our beautiful and earth-friendly cremation urns, which will break down in water or soil. When placed in water, this water burial urn will float briefly then sink to the bottom, where it will break down naturally over time. Perfect for a ceremony or memorial service. Can be used in the ocean, lake, river or ground.