Ocean Burial Urns: Rules, Costs & Ceremony Planning Guide

Part of our complete Biodegradable Urns Guide.

An ocean burial urn allows families to honor a loved one with a meaningful sea scattering ceremony — releasing cremated remains into the ocean in a dignified, environmentally responsible way. This guide covers everything you need to know before planning an ocean ceremony: the legal requirements in the US, UK, and Canada, what the ceremony typically costs, how to choose the right urn, and what to expect on the day itself.

The legal 3-nautical-mile rule explained

In the United States, ocean scattering of cremated remains is governed by the Marine Protection, Research, and Sanctuaries Act (MPRSA), which permits the practice provided two conditions are met: the scattering must take place at least three nautical miles from the nearest shoreline, and the person responsible for the scattering must notify the Environmental Protection Agency within 30 days of the ceremony taking place.

The 30-day EPA notification is not a permit application — it’s a simple online form that takes approximately five minutes to complete. You do not need to apply in advance or wait for approval. The notification records the date, location coordinates, and the name of the deceased, and is filed after the ceremony rather than before it. Failure to notify the EPA is technically a violation of the MPRSA, though enforcement against private individuals conducting small family ceremonies is extremely rare.

Do you need a permit for ocean scattering?

For private family ceremonies using a small boat or charter vessel, no advance permit is required in the US — the post-ceremony EPA notification fulfills the legal obligation. However, there are two situations where additional steps may be needed:

If you’re using a commercially operated charter boat or funeral vessel specifically for the scattering ceremony, the vessel operator may hold their own permits and handle the notification on your behalf — confirm this with the operator before booking. If you want to scatter ashes from a commercial cruise ship or ferry, most operators have their own policies and procedures for this, and you’ll need to request permission from the company in advance.

UK permit requirements

In the United Kingdom, there is no specific legal requirement to notify any authority before scattering ashes at sea, though the Environment Agency publishes voluntary guidance recommending that scattering takes place well offshore and away from beaches, fishing areas, and shellfish harvesting zones. Scotland follows separate legislation but applies similar principles in practice. No advance permit or post-ceremony notification is required under current UK law.

Canada permit requirements

Canada has no federal law specifically governing the scattering of cremated remains at sea, and provincial regulations generally focus on licensed cemetery operations rather than open-water scattering. In practice, ocean scattering from a private vessel in Canadian waters is widely permitted without formal notification, though it’s advisable to check with the relevant provincial authority if you’re planning a ceremony near a protected marine area or national park.

Average cost of an ocean scattering ceremony

The total cost of an ocean scattering ceremony varies significantly depending on whether you use a private boat, hire a charter vessel, or arrange a full-service ceremony through a funeral provider. The table below shows typical costs for each approach in the US market in 2025.

Choosing the right urn for sea burial

Not all biodegradable urns perform equally well in a sea burial ceremony. The material you choose affects both the visual experience of the ceremony and the practical logistics of releasing the ashes. See our detailed comparison in our water-soluble urns guide for specific product recommendations.

Floating urns

Floating urns are designed to rest on the water’s surface for a brief period — typically 3 to 10 minutes — before gradually absorbing water and sinking. This creates a meaningful visual centerpiece for the ceremony, allowing family members on the boat or shore to watch the urn as it slowly descends. Most floating urns are made from compressed paper or natural plant fibers, and the floating time can vary depending on wave conditions and the specific product.

Sinking urns

Salt-based urns are denser than floating paper options and typically sink quickly upon contact with water rather than floating. This makes them a practical choice when the ceremony is less focused on the visual moment of release and more on the act of returning the ashes to the sea. Salt urns dissolve completely within 2 to 6 hours in saltwater, leaving no permanent trace. They are also slightly more durable during transport than paper urns, making them easier to handle on a boat in choppy conditions.

Scattering tubes

For families who prefer to scatter loose ashes directly into the water rather than placing a sealed urn, a biodegradable scattering tube allows you to control the release precisely — useful in windy conditions where loose ash can be unpredictable. The tube itself can then be released into the water or retained by the family. This approach gives the most control over the ceremony but requires more confidence in handling the ashes directly.

What to expect on the day of the ceremony

An ocean scattering ceremony is typically a quiet, intimate event. Most families choose a small group of close friends and relatives — the size of the charter vessel often determines the practical limit, with most boats comfortably accommodating 6 to 20 people for a ceremony.

The ceremony itself can be as simple or as structured as the family wishes. Some families choose a moment of silence, a brief reading, or the playing of a favorite piece of music as the urn is released. Others prefer a more spontaneous, natural farewell without a fixed structure. Charter operators who specialize in scattering ceremonies can offer guidance on timing and ceremony format if you’re unsure where to start.

Practical tips for the ceremony

Check the weather forecast carefully before the ceremony date — choppy seas and strong winds make both the boat journey and the scattering itself more difficult, and some operators will postpone if conditions are unsafe. If you’re using a floating urn, position the boat so that the wind carries the urn away from the vessel rather than back toward it. Bring a camera or designate someone to photograph or film the ceremony, since many families find these moments difficult to recall clearly afterward and value having a record.

Biodegradable urns for sea burial: choosing the right option

Families planning a sea burial ceremony often search specifically for biodegradable urns for sea burial — a category that overlaps significantly with water-soluble urns but also includes paper-based and gelatin urns designed to float briefly before dissolving. The distinction matters for the ceremony itself: a floating urn allows the family to watch the release from a boat or shoreline before the urn gradually sinks and dissolves, while a denser salt urn may sink immediately upon contact with water without the visual element of floating.

For a traditional sea burial ceremony, a floating paper or gelatin urn typically creates a more meaningful visual moment, while a salt urn is the more practical choice if you simply want to release the ashes quickly and cleanly without a prolonged ceremony on the water. For a full comparison of all biodegradable options, see our complete biodegradable urns guide.

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