Within the province of Valencia, West of the city of Valencia on the A3 you’ll find Buñol. Just west of town there’s a large canyon formed by the Rio Buñol. The canyon contains several sport bolted climbing areas on limestone rock with short approaches.

Useful links here:
https://www.valenciaclimb.com/climbing-areas/bunol/
https://www.enlavertical.com/escuelas/view/33

You can fly into Valencia, Madrid or Barcelona. If you stayed in Buñol you could probably hike to the crags. From Valencia, take the A3 to Buñol and head down to the river.