Navionics chip for south brittany

[Paddydog`1]

Hi all
I've a Lowrance HD8 Gen2 chartplotter with a platinum chip for the UK and Ireland. We're heading to South Brittany next week which is of course outside the chart range . What is the cheapest electronic chart for the area on my chartplotter.
Thanks

 

[Paddydog`1]

anyone with advice?

 

[crshand]

If you want to stick to Platinum+ you can go for 31 Atlantic Coast & Western Mediterranean Or there is the Gold Europe West. If you're willing to trade your old card in, you can get 50% off the cost.
Hope this helps