Download Free OpenCPN Marine Navigation Software

About OpenCPN: Chartplotter & GPS Navigation Software.

OpenCPN is a free software (GPLv2) project to create a concise chart plotter and navigation software, for use underway or as a planning tool. OpenCPN is developed by a team of active sailors using real world conditions for program testing and refinement.

The most recent stable version can be downloaded from

For a FREE OpenCPN app for your android device click here.

You will be able to find digital charts for all areas of the world, including navigational charts, pilot charts, tide tables and have access to many other resorces once you get started with your OpenCPN app.

To get the most from this software, take a look thru the OpenCPN Users Manual. If you get stuck, there is lots of very useful advice and tips on the Cruisers forum website.

Download Free Charts for Thai waters

To get started, here is a link to a full set of outdated navigational charts for Thai waters. Please note that these are OLDER charts and not recommended for navigational use...  

Download the file below, unzip and load them into your OpenCPN chart files.

Download -

 5/10 Day IYT Crew/Skipper's course - BOOK TODAY!

  • May 22-31, 2020
  • June 05-14, 2020
  • June 19-28, 2020
  • July 03-12, 2020
  • July 17-26, 2020
  • July 31-August 09, 2020
  • August 14-23, 2020
  • August 28-Setember 06, 2020
  • September 11-20, 2020
  • September 25-October 04, 2020
  • October 09-18, 2020
  • October 23-November 01, 2020
  • November 20-29, 2020
  • December 04-13, 2020
  • December 27-January 05, 2021
  • January 08-17, 2021
  • See the SailQuest Courses & Events Calendar

SailQuest PROMOTION 2020!

  • Book course dates NOW and receive the IYT VHF Radio Operators Certificate included in your course cost. Save 2,500THB! Limited Time Offer.
  • SailQuest course cost includes accommodation at the SailQuest Guesthouse or a 4,000THB refund... Best Value Guaranteed!
  • Contact Us for full details.
Contact SailQuest!
We look forward to providing an exceptional, rewarding sailing experience. We are standing by now to reply to any questions or provide any details regarding our sailing program. Thank you.
Please Enter your Name.
Please enter your Email.
Write your message!