Hey guys have been given access to a mates waypoints that are stored on a Garmin handheld. Many years of diving and fishing. there are several hundred and I would like/ prefer to transfer them to a format that the Lowrance in my boat can deal with rather than spending countless hours entering them in one by one.

I have looked through the many posts that cover conversions but cant find anything that will confidently work. Has anyone on here done similar or had success with the various aftermarket programmes. Seems plenty of reccomendations on what may work and I am happy to consider these but would prefer if someone has first hand experience doing the garmin to lowrance conversions.

Appreciate any help !