In reply to Neil:
No real DWS in that area. There is supposed to be a 1500m dws traverse at Capo Noli but it's 7b, probably hard to find your way and many parts with non safe falls. Here's a video of Mauro Calibani establishing a hardcore DWS route in that area
I'm also sorry to tell you that in July there won't be any not-too-crowded beaches near Finale.
With a car you could go to Varazze, the largest bouder area there is next to a river with water pools and natural slides, certainly a nice place to bring your kids.
But there is some climbing in walking distance if you're living in Finale, check out the small but nice
Paretina di Finalborgo, which will be in the shade until midday.