The complete planner and guide for travel and leisure on the River Thames (from its source to the sea) including where you can go, how you get there and what’s on the way - includes these key features:

Thames Map and Guide:
•Interactive River Map: internet connection required
•Journey Planner: time and distance between any two of 102 river points
•Locks: need to know detail on every lock
•Bridges: headway in metres and feet
•River draft (clearance under your keel)
•Weather for selected locations
•Current river conditions (non-tidal and tidal)

Boating Advice:
•Rules for the River
•Preventing Problems
•Emergency Help and Guidance (RNLI approved)

INTERACTIVE RIVER MAP: pinch or squeeze to zoom to the required level of detail. Add any combination of locks, moorings, boatyards, fuel, marinas, pubs, restaurants, lodgings, sanitation, fishing and/or bridges; tapping any icon pops up further details including phone number, post code, maximum stay etc (where available).

JOURNEY PLANNER: select a starting point and destination from the supplied list of 102 landmarks (including locks, marinas, moorings, bridges and places of interest (from Lechlade to the Thames Barrier) and immediately see the sailing distance, direction (up or downstream), sailing time (at 5 mph and at 3 mph) and the number of locks to transit to complete your journey.

LOCK FEATURES: every Thames lock is listed in order from Cricklade Bridge to Teddington with distance to next lock both up and downstream. Touch any lock to see much more information including: telephone number; post code; lock type; width, drop and length; lock keeper’s hours; facilities available (such as WC, water, pump out etc). From the lock detail just tap to put this lock in the middle of the interactive map.

BRIDGE HEADWAY: every bridge listed in order with headway in feet and metres; bridge headways are colour coded for ease of use and instant check to see if you need to lower any masts.
All the above features are built-in so are available even without an Internet connection.

WEATHER: select one of 20 location on the river for an up-to-date weather forecast for today and tomorrow (includes temperature, winds, humidity, visibility, sunrise and sunset). The weather page includes the current nautical twilight (the correct time to strike your ensign).

CURRENT RIVER CONDITIONS: for safer river use always verify the current official conditions before setting off; non-tidal conditions are provided by the Environment Agency (the River Thames authority) and categorised as Red, Yellow or Green – tap to view an explanation of the colours. Tidal conditions are provided by the Port of London Authority.

IN CASE OF EMERGENCY: River Thames Guide includes an SOS section with information, endorsed by the RNLI, on how to deal with various problems including: Man Overboard; Boat Sinking; Boat on Fire; Boat Drifting. NOTE: these sections should be studied before embarking so that you can react properly to any emergency. Better still: take an appropriate course before using the river.

HELP: tips on using River Thames Guide to help plan your journey, find somewhere to eat or stay, using the map, and more.

What's New

Version 18.05

Added EA phone numbers for river conditions updates
use when no internet connection available
Tidied up Advice sections
improved layout for easier reading
Added Fluvial Flows to tidal conditions
Added more terms to the Glossary
Lock pages now show distance to next in miles and kilometres
Added list of VHF Channels (in Advice/Rules for Tidal Thames)
Non-tidal current conditions
now include date of last EA update
Overlay map with lock names
add a 'tooltip' to each lock icon
see every lock name at a glance
For Thames fishing
added map showing where fishing permitted at locks
(where available)

Ratings and Reviews

4.8 out of 5

34 Ratings

34 Ratings

Great app with loads of useful info for planning and using whilst aboard the Thames


Excellent introduction to all the services on the River Thames with a gear google map a must for the river user or visitor ! Now the season is about to start why not keep up with everything new and exciting on the river !

Great app guys!

The DIY Master

Just heard about this app at the London Boat Show this year and it's working really well! Can't wait to take it out on to the water and see what is around and about. Handy to have river news in there too about closures and maintenance work. Nice work guys!

Great intro to the Thames.


A very handy app for Thames users. Oh buoy! I thought when I downloaded it, but after piering at it for a while I was won over, and took a punt. Cruising through the swish help menu was quite nice, and couldn't have come any schooner in the process.


Jeff Maynard
100.1 MB
Requires iOS 9.1 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© Jeff Maynard, BMF Thames Valley


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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