It's been ages since I've been but from memory it may be difficult to find what you're after
Can Piqui Pugui, one of the 'marquee' sectors, where Anabolica is has difficult access as in you have to scramble down a short but narrow and steep rocky section. I don't remember there being anywhere to run around at the bottom of the crag as it's enclosed by trees and vegetation.
El Pati and L'Olla offer easier access and more space at the bottom of the crags but there are substantial drops from the platforms.
I haven't climbed at Siuranella (opposite El Pati) but it looks to have little area at the base with an even longer drop.
I had the old local guide (crag diagrams with green and orange graphics from what I remember
) and it was basic as in you couldn't get a feel for spaciousness or crag suitability but maybe the current one has a crag selection table or provides more detail? If you can it might be worth popping into a shop to have a browse of the current definitive guide to see what you think.
Having said all that there will obviously have been plenty of people there with dogs so it's doable but maybe comes down to personal preference