Chartlets and other downloads

There are eleven downloads currently available:

What's available



SW Sunk 2021 V3.jpg

The South-West Sunk swatchway


Revised 06th September, 202


PDF  Download

See the video showing the tide rip.  Note, if you follow the recommended wpts, you will be well clear and probably would be not be there at that state of the tide anyway.

The SW Sunk was re-surveyed on 27th May.2021. The swatchway remains well established albeit the SW Knoll has edged northwards a little.  But the Middle Knoll is retreating.  The same waypoints used in 2020 could still be used but I would recommend that the West and Central waypoints  are revised slightly further North to retain the same distance as the SW Knoll (see the download for details).

The preparation of the chartlet was kindly provided tide data from the Port of London Authority which assisted in reduction to Chart Datum.

Update - a Notice to Mariners in September reports three wrecks in the swatchway.  At 3.5m or more the swatch will continue to be safe.  Chartlet is updated

Note: As before to the north-east, the Middle Sunk knoll is a quite gentle slope up.  However, the knoll to the south-west has a very steep edge and should be avoided.  Holding the rhumbline between the West and Mid waypoints is important.  On the flood it was clear the tide followed the 'bed' of the swatchway from the East to the West and at the west end the flood tide meets the flood down from the Barrow Deep.  That provokes an interesting tide rip in the face of the knoll.  I noted where the two 'tides' met whilst not difficult, we needed more concentration to steer straight.  I stress it was not difficult and this only  happens in the second half of the flood tide.  If you use my tables and seek the shortest passage times, you would never arrive at the swatch at the time when the tide rip would occur.


Crouch 27b.jpg

The revised Outer Crouch buoyage June 2021


Revised 15th June, 2021


PDF  Download

Following the annual maintenance round, the Crouch Harbour Authority has altered the buoyage in the Swallowtail and Whitaker channels.  Effectively the overall arrangement for the buoyage remains as before except that three buoys have been withdrawn and some positions, light characteristics and names have been amended.

Spitway 2021 Download V1.jpg

The Spitway


Redrawn chartlet July, 2021

PDF  Download

This is a CTTE chartlet based upon resurvey on 2nd and 12th July, 2021.  This suggest there has been no significant changes over the past year.  Best water remains to the east of the Safe Water Buoys but as before it is only 0.2m better than in the line between the two buoys.

Ray Sand composite V2 2020.jpg

The Ray Sand

Revised and Updated Septermber, 2020

PDF  Download

This is a CTTE Chartlet based upon surveys on 3rd, 17th and 24th July, 2019.  The best line of 'water', i.e the lowest drying line is the 1 degree  E  meridian.

The PDF includes some notes on tide heights on the Ray Sand.

The revision in September, 2020 is for the change of position of the Ray Sand Buoy vide NtM 4836 of 2020.

Little Sunk Surfer 2020 V2.jpg

The Little Sunk

Adjacent to the Barrow No 2 PHB


Redrawn August, 2020 using new software

PDF  Download

This is a CTTE chartlet based upon a survey completed on 24th August, 2019.  This is usually a stable  crossing place and  it remains so.  The survey was more comprehensive  than previously and consequently there is a significantly greater amount of detail.

The image can be downloaded by itself or, by using, the PDF download you will received some general notes about observations and for those with copies of the book some observations about the waypoints and routes..

The crossing area is bounded by two wrecks to the south-west and the wreckage of the old 'Little Sunk' Beacon to the north-east.  All hazards are physically unmarked but there is ample room assuming a valid GPS signal over sand.

London Array Foulger's Gat 2019.jpg

The London Array Wind Farm and Foulger's Gat

Amended 28.01.2015

No subsequent changes up to Aug. 2019.

PDF  Download

This is CTTE’s image of the route through the London Array Windfarm .

Quarters Drawing 2019 Buoyage revision Mersea and Tollesbury Routes V2.jpg

Mersea Quarters

Buoyage as August, 2019

(Tollesbury No 4 now placed back)

PDF  Download

This is a CTTE chartlet based upon a survey completed during October, 2016.

Changes to depth across the Quarters has required a change to the buoyage which was re-laid in April, 2017.

Deep draught yachts (i.e. @2m draught) is recommended to follow the suggested route at LWS. Note this has been amended this month (May) to show the 'Obstn' SW of the Nass Beacon is not now annotated as ED.  It DOES exist and should be regarded as dangerous to leisure craft.

Tollesbury North and South Channels V2 2019.jpg

Tollesbury North and South Channels

Revised (2) August, 2019

(Tollesbury No 4 now placed back)

PDF  Download

This is a CTTE Chartlet based upon surveys in 2011 and 2012.

This includes the repositioning of buoys during 2019.

Leavings Final V1 2014.jpg

Tollesbury - the Leavings

Revised September, 2015

PDF  Download

This is a CTTE Chartlet based upon surveys in 2011 and 2012 with corrections to 2015.

Bradwell 2020 all data compromise V3.jpg

Bradwell Creek


New chart 2020

PDF  Download

Re-surveyed on 21st July, 2020 and redrawn.

The chartlet is drawn to Chart Datum.

I have  just added a table of Tidal Height predictions at Bradwell Creek which I hope will assist new visitors.

When printed the chartlet is best in A3  size.  It is difficult to include all the detail in A4.  None is omitted so it will be quite small.  Of course as a PDF or JPG it can be enlarged as you wish.

Lawling Creek 2014.jpg

Lawling Creek

Revised September, 2014

PDF  Download

This is a CTTE chartlet based upon surveys in 2011 and 2014.  It includes the additional buoyage put in by Maldon District Council for 2012.

Passage Planning Assistant example edition 2.pdf

Passage Planning Assistant

PDF  Download

Please download copies as often as you require.

Home About the Book Updates Navigation Downloads


About the book




To be notified whenever an amendment is published for the book, please sign up here

 Please note that the Notices to Mariners service is regular and is added very week.  No notification is therefore provided.

For the site policy on the Notices to Mariners service, please see here:

                                  NtM Policy

Sign up for Book Updates

Contact us: