Each chart bundle contains several hundred charts in different scales from overview to harbor charts. Collections covered by OpenSeaMap as of May 2016 can be downloaded for the following regions:

Area Update Size

Baltic Sea 17.1.2017 ~400MB

British Channel 17.1.2017 ~220MB

Mediterranean Sea West 18.1.2017 ~520MB

Mediterranean Sea East 17.1.2017 ~540MB

Adriatic Sea 17.1.2017 ~140MB

Gulf of Biscay 17.1.2017 ~110MB

North Sea 17.1.2017 ~550MB

Caribbean 17.1.2017 ~220MB

South Chinese Sea 17.1.2017 ~200MB

East Chinese Sea 17.1.2017 ~150MB

South Pacific Islands 17.1.2017 ~500MB

Magellan Strait 17.1.2017 ~25M

Some people have reported that the links are not working on: https://wiki.openstreetmap.org/wiki/KAP-charts_from_OpenSeaMap

However, on the same page is a link to the download directory on the server:

ftp://ftp5.gwdg.de/pub/misc/openstreetmap/openseamap/charts/kap/

This link works. It does not have all the same chart collections as on the wiki page – some are missing and there are some extra. The files ending in .7z downloaded and extracted fine using Winzip.

Content is available under Creative Commons Attribution-ShareAlike 2.0 license unless otherwise noted.

https://wiki.openstreetmap.org/wiki/KAP-charts_from_OpenSeaMap