We'll have a decent gathering at Beltring, so come and have a cup of tea, or something colder, with us.
It's difficult to recommend what to do on the WW1 battlefields aspect because there is so much. But obviously, when you are on the Somme you will find yourself in Villers-Bretonneux, Le Hamel and up to Pozieres. All essential. The Tommy cafe in Pozieres is a bit of a dump, but seems to lure Aussie parties. Better off having a cuppa with Teddy and Phoebe at the Ulster Tower which is mid-way(ish) between Thiepval and Newfoundland mem park on a straight-ish rd from Pozieres. BTW, the 1st Aus Div memorial and Gibralter are at the opposite end of the village to the Windmill, which is opposite the Tank Corps memorial. Blue sky days make the place great. You'll pass Moo Cow farm en route to Thiepval. Very special.
I haven't been to Fromelles, which is still big news.
If you have time, get on the Vimy Ridge website and arrange a tunnel tour
and if in Arras do the same, the Waterloo tunnels cost five.fifty eruo a head. I'm doing them this weekend.
As said, there is so much - but you must not miss the Menin Gate. Ypres is a glorious place to stay (Arianne and Novotel are fine). Great atmosphere - good grub/beer and very appreciative people (mainly - some tossers about).