Hi Ian, long sessions are always a problem for keeping fresh foods, I used to solve the problem with a very expensive 7 day freezer/cool box that would keep ice frozen for at least 5 or 6 days, if you are anywhere close to shops you may be able to get fresh ice, easy in the UK but maybe not so easy to get in some European countries. Where are you off to?
Sadly I rarely go fishing any more due to COPD and arthritis but was a very keen carper since the early eighties right up till a couple of years ago when I just found it too hard on my back and respiratory system
Good luck anyway :thumbup: