We usually
cruise the
Mediterranean, with a lot of redundancy as far as charts: an old B/W
Raytheon plotter with obsolete C-Maps (still useful for passages, very low
electrical consumption), +
OpenCPN and CM93 on the
laptop (Mac Powerbook), + Mac
ENC and navionics
ENC charts (Mac Powerbook), + Navionic charts on the
iPhone (proved to be very accurate), + Italian Istituto Idrografico, French and Admiralty charts.
Still, I feel that one of our best investments is
buying every year the latest edition of the French Bloc
Marine (Mediterranean edition), which is in French AND
English. At 26 euros, you'll have ALL the documents needed for the
navigation in the western
Mediterranean, according to the French law: all the maps and charts nededed (navigation: 1/80.000°, en WGS 84; all the
ports with full details, description,
phone numbers etc.), signals and lights, meteorology, maritime laws and a wealth of information in 800 pages, including a 5 languages maritime glossary. There is maybe a Reeds edition in
English, but the original in French and English could help while cruising in
France. Details here:
Bloc Marine Mediterranée 2013