I was very sorry to read about your parents Malcolm. Please give them my kind regards and apologies for not getting back to them. I did pass their house several times and was tempted to drop in but I prefer to give advance warning of my arrival and was sweaty and smelly from walking.
I still walk a lot and have been across to the lakes several times this year and enjoyed some splendid walking on the fells during some of the limited warm spells ghat we have had.
I dont remember seeing the tank traps on the beach but will look out for them. I first visited the seaside at Newbiggin with my grandmother during the war when I must have been about three. we were only able to sit at the top of the beach as it was covered in rusty barbed wire.
Warmest good wishes