theres the zoo in Fuengirola,
Crocodile park in Toremolinos
The Marina in Benalmadena is like a trip out as it's so amazing
Tivolli world theme park (more for under 10's I'd say)
Plus theres a massive park (free) called Palloma Park and it has a big lake with loads of fish and terrapins! Also jotted about the park living wild are many rabbits, chickens, etc. It really is a nice place to go any time of the day. Go on the evening for a stroll and enjoy a beer or two at one of the bars!