Everyone has stole my thunder on this one, Monkey Park is the place, also Camel Park at Armenime, little known place other side of the motorway from the airport is the Ostrich Park, as for evenings most bars and restaurants accept kiddies no problems and the Spanish love kids, so the waiters fuss over them all the time, one place mainly for kids would be Bens bar in Torviscas Alto and also near the Waterpark Pinnochios Italian, its pretty close to Molino Blanco, it has a bouncy castle etc for kids!
If they really get on your nerves take them up the Volcano and leave them there.
Only kidding with the last bit