Castino! There is a very good walking group there and some wonderful walking. I’ll be interested in how you get on staying there, as we’ve thought about returning to stay for a few days.
The vineyards are split across multiple owners, so access has to be open. Thus in all the walks we’ve done, we’ve only found a single fence (near Treiso), and that idiotically planted across a marked walking path. Everywhere else has been completely free to roam, with clear and wide dirt paths criss-crossing, so you walk alongside the vines, but never need to detour between the individual rows of vines. Signposts aren’t common, but there is a good walking map available locally for c. 10 euro that you’ll almost certainly want to keep (not the Masnaghetti vineyard posters, but a specific map of the trails within the vineyards). That said, the landscape is hilly, so it’s often as simple as heading up in the general direction of the destination that you can see with your own eyes, with lots of alternative routes to get there. It’s also quite good fun to navigate by vineyard (these are usually signposted) e.g. turn left at Muscatel, head through Cerequio and Brunate … etc.
Treiso offers a good spread, from good wine bar, to a great (but once over-hyped) trattoria, to a staunchly traditional, to a fancy place with stunning wine list.
I really liked Le case della Sarracca in Monforte as a place for a wonderful early evening aperitivo spread and good wines by the glass from enomatic dispensers (that the owner dispensed IIRC). Osteria La Salita impressed but I’m told the restaurant right next door is also good
In Serralunga, we were very impressed with the Schiavenza wines, but the restaurant is cracking value for traditional yet ever so slightly modernised. A place I’d think about for lunch.
In La Morra, Osteria Veglio has lovely views, nicely traditional and with excellent pasta. We go lucky visiting Belvedere in La Morra either side a very public and steep fall from grace. The view are stunning and we had good experiences, but get a more recent view to see what they are like now. Plenty of others, some of which we’ve eaten at but forgotten, or it’s been a long time. Others will have good recent experiences to offer.
Regards
Ian