Biodegradable Urns for Burial at Sea

Biodegradable urns offer a gentle, environmentally respectful way to return a loved one to the ocean. Made from natural materials such as recycled paper, salt, sand, or gelatin, these urns are designed to dissolve naturally after entering the water—leaving no lasting impact on the marine environment.

We regularly use and stock approved biodegradable urns on our charters and are always happy to guide families in selecting an appropriate option.

Ocean-Safe Urns Approved for Burial at Sea in California

Not all biodegradable urns are suitable for ocean burial. California regulations require that urns placed into the sea be fully biodegradable, contain no metal or synthetic components, and break down naturally once submerged. Our team reviews each urn to ensure it meets these requirements and performs properly during a sea ceremony.

California Requirements for Sea Burial

California law requires that any urn placed into the ocean must:

- Be fully biodegradable
- Break down completely within four hours
- Contain no metal, plastic, or synthetic components

A Disposition of Human Remains Permit is required for all burial-at-sea ceremonies in California. This permit must be issued and available before the vessel can legally depart the dock. To learn how the permit works, who can obtain it, and how we help families handle this step, visit our Disposition of Human Remains Permit page.

Unfortunately, families are sometimes told an urn is ocean-approved when it is not. We help prevent this by reviewing urns in advance and offering approved alternatives when needed.

How Biodegradable Urns Work

All biodegradable urns include a biodegradable inner bag. The cremated remains are first placed into this bag, which is then secured inside the urn.

- The urn may float briefly depending on design and water conditions
- Once submerged, the inner bag dissolves immediately
- The urn then breaks down naturally, releasing the cremains gently into the ocean

Urns are not required for ash scattering, but some families prefer them to:

- Reduce wind or blow-back
- Align with religious or cultural traditions
- Create a symbolic, contained farewell

Browse the most common ocean-safe urn styles below. Tap “View details” to jump to full descriptions, float behavior, and sizing guidance.

🐢 Sea Turtle Urn

Symbol of protection and safe passage

- Handcrafted from recycled paper
- Floats briefly, then gently sinks
- Biodegrades naturally over time
- Each turtle is unique
- Baby turtles available for shared ceremonies

👉 Learn more about Sea Turtles

🧂 Himalayan Salt Urn

A powerful return to nature

- Hand-carved from solid Himalayan rock salt
- Naturally dissolves within ~4 hours
- Strong visual presence during ceremony
- Includes biodegradable inner bag
- Fully compliant with California requirements

👉 Learn more about Salt Urns

🛏️ Journey (Pillow) Urn

A gentle farewell honoring life’s journey

- Made from sustainably sourced paper
- Floats briefly before sinking
- Available in calming coastal colors
- Popular for serene ocean ceremonies

👉 Learn more about Pillow Urns

🏖️ Sand Urn

Grounded, natural simplicity

- Crafted from natural sand with biodegradable binding materials
- Solid, stone-like appearance with an organic feel
- Briefly bobs on the surface before gently sinking
- Breaks down naturally over time on the ocean floor
- Available in multiple sizes; larger size recommended for full cremains
- Compliant with California law

👉 Learn more about Sand Urns

🐋 Whale Urn

For those connected to the ocean

- Crafted from recycled paper materials
- Holds a standard amount of cremains
- Floats briefly, then sinks peacefully
- Meaningful marine symbolism
- Eco-conscious and ocean-safe

👉 Learn more about Whale Urns

🐚 Seashell Urn

Soft, coastal elegance

- Made from recycled paper products
- Available in blue, sand, pearl, coral
- Matching keepsake urns available
- Floats longer than most designs
- Breaks down naturally over time

👉 Learn more about Seashell Urns

🐢 Biodegradable Sea Turtle Urn

The biodegradable sea turtle urn is lovingly handcrafted from recycled paper using non-toxic, eco-friendly adhesives. Each urn is individually made by skilled artisans, meaning no two turtles are exactly alike—subtle differences in size, shape, and color reflect the uniqueness of the life being honored.

Symbolically, the turtle represents longevity, protection, and safe passage, making it a meaningful choice for ocean ceremonies. When placed in the water, the turtle typically floats for a short time before slowly taking on water and gently sinking beneath the surface. Float time varies based on sea conditions and the weight of the cremated remains.

Once submerged, the urn biodegrades naturally over time, leaving no trace in the marine environment. Smaller “baby turtle” urns are also available and are often chosen by families who wish to participate together in the ceremony by sharing the scattering experience.

🧂 Himalayan Salt Urn

Himalayan salt urns are individually hand-carved from solid blocks of natural rock salt formed over 250 million years ago, making each urn a one-of-a-kind piece of natural art. Variations in color, texture, and mineral pattern ensure no two urns are ever the same.

These urns create a striking and dignified presence during a burial at sea ceremony. Once placed into the ocean, the salt begins to dissolve immediately and typically breaks down completely within approximately four hours, in full compliance with California sea burial regulations.

Each salt urn includes a biodegradable inner bag and tie for the cremated remains, ensuring respectful containment until the moment of release. Families often choose salt urns for their strong symbolism—representing purification, impermanence, and a return to the elements.

🛏️ Journey (Pillow-Style) Urns

Journey urns are hand-crafted from sustainably sourced, biodegradable paper and are designed with a soft, pillow-like shape. A distinctive footprint motif represents the journey of life and the path taken by the loved one being honored.

When placed in the ocean, Journey urns typically float briefly, allowing families a quiet moment of reflection before the urn slowly sinks and naturally biodegrades over time. These urns are available in a variety of calming colors, including ocean blue, dark blue, white, gray, and green.

Because of their balanced design and predictable behavior in the water, Journey urns are a popular choice for families who want a serene and visually gentle farewell. Video of a biodegradable journey urn on our urn video page.

🏖️ Biodegradable Sand Urns

Sand urns are made from natural sand combined with biodegradable binding agents, giving them a solid, stone-like appearance while remaining environmentally responsible. When placed in the ocean, they briefly bob on the surface before descending to the seafloor.

Over time, the urn gradually breaks down and returns to its natural state. Sand urns are available in multiple sizes; we generally recommend the larger size to comfortably accommodate all cremated remains and ensure proper fit.

Families often select sand urns for their simplicity and grounding symbolism—representing earth, stability, and the natural cycle of life.

🐋 Biodegradable Whale Urn

Biodegradable whale urns are handcrafted from environmentally friendly materials, including recycled paper, using the same careful process as the turtle urns. Designed to hold a standard amount of cremated remains, these urns float briefly before gently sinking below the surface.

Whales symbolize strength, guidance, and deep connection to the ocean, making this urn especially meaningful for those who loved the sea or marine life. The whale urn provides a visually powerful yet peaceful tribute, offering comfort to families seeking a symbolic ocean farewell.

🐚 Seashell Biodegradable Urns

Seashell urns are made from recycled paper products and are available in soft coastal tones such as blue, sand, pearl, and coral. Their curved, shell-inspired design gives them a delicate and comforting appearance during the ceremony.

A unique feature of seashell urns is the availability of matching keepsake urns, allowing families to retain a small portion of the cremated remains as a personal memorial. These urns tend to float longer than some other biodegradable options before gently sinking and biodegrading naturally over time.

Seashell urns are often chosen for their symbolism of home, protection, and remembrance.

Frequently Asked Questions About Biodegradable Urns

Choosing a biodegradable urn for burial at sea often raises practical and emotional questions. The information below addresses one of the most common concerns families have when planning an ocean ceremony.

Are biodegradable urns required for burial at sea?

Biodegradable urns are not required for ash scattering at sea when cremated remains are released directly into the water. However, a biodegradable urn is required if an urn will be placed into the ocean as part of a burial at sea ceremony.

California regulations require that any urn entering the water be fully biodegradable and designed to break down naturally within a short period of time. Urns made for ground burial may be labeled “biodegradable” but are often not suitable for ocean use.

Many families choose biodegradable urns because they help contain the cremated remains during the ceremony, reduce wind or blow-back, and align with environmental, religious, or cultural preferences. Our team reviews all urns in advance to ensure they are appropriate and compliant for burial at sea.

Can families bring their own biodegradable urn?

Yes. Families are welcome to bring their own biodegradable urn for a burial at sea, provided it meets California ocean burial requirements. The urn must be fully biodegradable, contain no metal or plastic components, and be designed to break down naturally in water within the required timeframe.

Because some urns marketed as “biodegradable” are intended only for ground burial, we recommend having the urn reviewed in advance. Our team is happy to confirm whether a specific urn is appropriate for ocean use and suggest alternatives if needed.

How long do biodegradable urns float before sinking?

Float time varies depending on the type of urn, ocean conditions, and the weight of the cremated remains. Some biodegradable urns float briefly, allowing families a moment of reflection, while others may bob gently before slowly sinking.

Once submerged, the urn and inner biodegradable bag begin breaking down naturally, releasing the cremated remains into the ocean in a respectful and environmentally responsible way.

Are salt urns allowed for burial at sea in California?

Yes. Solid Himalayan salt urns are fully compliant with California burial-at-sea requirements when used properly. They contain no metal, plastic, or synthetic materials and begin dissolving immediately upon contact with seawater. Once fully submerged, they typically break down completely within approximately four hours, leaving no lasting environmental impact.

For those deeply connected to the ocean, salt urns can feel especially meaningful. We once worked with the friends of a lifelong technical diver whose greatest peace was found underwater. Choosing a salt urn felt like a natural return — simple, beautiful, and aligned with who he was.

Himalayan salt urns have a striking mineral quality and often appear to softly glow when sunlight touches their surface, creating a powerful visual moment before gently dissolving back into the sea.

Salt urns represent purification, impermanence, and a return to the elements — making them a dignified and ocean-appropriate choice.

What size urn is needed for burial at sea?

Most standard biodegradable urns are designed to hold the full cremated remains of one adult (approximately 200 cubic inches). Larger sizes are recommended for full remains to ensure proper fit and performance during the ceremony.

Will the urn remain visible after the ceremony?

Approved biodegradable urns must comply with California burial-at-sea requirements, which state that the urn must break down completely within approximately four hours once fully submerged. Float time varies by design, but once underwater, salt urns dissolve quickly while paper- and sand-based urns biodegrade naturally without leaving harmful materials behind. Properly approved urns will not remain intact or create environmental impact.

Traveling With Biodegradable Urns

Traveling with a biodegradable urn is generally straightforward. We recommend carrying the urn as carry-on luggage once it contains cremated remains, as this reduces the risk of loss or damage.

TSA must be able to screen the contents using x-ray. If the interior cannot be clearly viewed, the urn may need to be placed in checked baggage. Because airline and security policies can change, we always recommend confirming current requirements with your airline before traveling.