Navigation authorities gather information and issue safety bulletins and reports of incidents.

CRT have a section on their web site for reporting; Click here. Alternatively you can call and give details of the incident to 0303 040 4040

The Broads Authority also have a section on their web site. click here

One other is PLA, and their reports can be read here: click here

BSS also issue summaries of incidents. The summary for 2012 can be seen here: click here

The Marine Accident Investigation Branch (MAIB) provide reports on all fatalities and other significant events. There reports can be seen here