Hi Gerd. Thanks for the reply, I have a solution for it, I said I don't use any options within the sea coomand, so it was just --precomp-sea="zip file name" I had no generate-sea command. once I added --generate-sea=land-tag=natural=background The sea behaved itself. I didn't realise the two had to be used together. Gary ________________________________ From: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> on behalf of Gerd Petermann <GPetermann_muenchen@hotmail.com> Sent: 08 May 2016 08:23 To: Development list for mkgmap Subject: Re: [mkgmap-dev] Land flooded Hi Gary, it seems that nobody has an idea, so maybe it is related to the device? Did it work with older versions of the precompiled sea ? Is all the country land flooded ? Gerd ________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Gary Bamford <garybamford@hotmail.com> Gesendet: Donnerstag, 5. Mai 2016 09:38 An: Mkgmap Betreff: [mkgmap-dev] Land flooded when i use the --precomp-sea= option with a file download from http://osm2.pleiades.uni-wuppertal.de/sea/latest/sea.zip I get the sea flooding the land, I don't use any options, it seems to be fine when viewed on Basecamp, but not when i put the map on to a hcx legend.