Cruisers Against COTs: Cruise with purpose. Protect the reef.
A cruiser-powered reef conservation initiative

Little starfish.
Big reef problem.

From sailboats to powerboats, we can help protect the reefs we love. Spot crown-of-thorns starfish, share reliable information, and connect with local reef experts.

Report a sighting →Meet the mission
Our mission

Cruisers together for healthier reefs

We are building a community-led network to document crown-of-thorns starfish (COTs) sightings and support science-based, locally authorized reef protection across tropical cruising grounds.

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Spot & report

Help identify where crown-of-thorns starfish are being seen, with dates, approximate locations, and photographs.

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Learn & protect

Access practical identification and safety information grounded in guidance from local conservation partners.

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Connect & support

Bring cruisers, marine scientists, dive operators, and island communities together to protect reefs.

Community map

Reef sightings map

This is the prototype map. When the live platform launches, verified public sightings will appear here, with sensitive locations generalized when appropriate.

Demo only: No live sighting database is connected. Reports entered on this prototype stay in this browser and are not transmitted or shared with anyone.

Map tiles require internet access. You can pan and zoom, but no actual sightings have been published.

Help protect the reef

Report a COT sighting

Your observations could help trained teams recognize emerging outbreaks. Record what you saw without touching or disturbing the animal.

Prototype form: Submitting saves a copy only on this device, for demonstration. It does not notify researchers, authorities, or the organization. Do not rely on it for urgent reports.

For active concerns, contact the appropriate local reef management authority or established conservation organization.

Safety first

Look, document, don't touch

Know the animal

Crown-of-thorns starfish have many arms and long venomous spines. They feed on living coral and can cause serious damage during population outbreaks.

Avoid injury

Never handle a COT bare-handed. Its spines can puncture skin and cause significant pain and injury.

Leave control to trained teams

Removal and treatment require approved methods, local permissions, and trained personnel. Do not cut, relocate, or inject starfish based on this website.

Before launch, all field protocols and educational content should be reviewed by regional marine scientists and local authorities.

Help us get underway

Build the network. Protect the reefs.

We are planning our first public reporting platform, education resources, and conservation partnerships. Our preliminary startup fundraising target is US$5,000.

We're not accepting donations through this prototype. Donation collection will begin once a suitable legal/fiscal structure, payment processing, and transparent accounting are in place.

Startup campaign — coming soon

Proposed uses: website and mapping, organizational setup, outreach, educational materials, and field coordination.

$0 raised on this prototype

No payment information is collected here. Tax-deductibility has not been established.

Contact setup pending

Made for people who live on the water

Whether you're cruising Fiji, Vanuatu, Tonga, or beyond, your eyes on the reef can help build a clearer picture of crown-of-thorns activity. We intend to work alongside—not replace—local reef stewards and conservation teams.

Founding initiative • Organization jurisdiction and legal status to be determined