Tell us about a rock — or about the way past it.

Only one box is required. A half-remembered report is worth far more than a complete one you never send, and nothing here is ever made public — reports go to a private inbox, and your name appears nowhere unless you ask for it.

What kind of thing is it?

These are different claims. A rock is a fact and can be evidenced. A way past it is a practice, and can only be confirmed by other people who sail there.

What happened?

In your own words. What you hit, what you nearly hit, or what someone told you. Any language is fine — we read Greek, Spanish, French and English.

Which way should you have gone? optional, and the most valuable thing here

Where?

If you cannot place it, say so — that is a real answer and we would rather have it than a guess. We draw unplaced hazards as a circle, never a pin.

No position — describe the place in the box above.

Which place is it? optional

A photograph? optional

Often better than a position. Water over a reef usually shows — the colour change, whether it breaks, whether anything is visible at all. And if your phone recorded where the picture was taken, we can use that.

Choose photosup to six · they are never made public

About you — all optional

We ask only so we can come back with a question, and so you can be credited if this reaches a hydrographic office. A report with none of this is still worth sending.

Your name

Boat

Charter base or club

When did this happen?

You may credit me if this is passed to a hydrographic office. Notices to Mariners name the reporter as the authority unless they decline.

Tick the box above first

Goes to a private inbox and is read by a person. If it stands up it becomes a seamark with your wording quoted and your sources kept. This is a prototype, not a chart, and nothing here replaces official charts or your own eyes.

Thank you — that is genuinely useful.

It goes to a person, not a queue. If you left an email we may come back with a question; most of what makes a report valuable is the detail that only you noticed.

If you sail here often, the marks you send stay credited to you — this is what that looks like.

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