Best zoo I've been too. This place is massive and ...

Best zoo I've been too. This place is massive and takes at least one whole day to do it justice. Probably not a great place if you want to avoid kids, but the exhibits are generally well-designed. The only negative if you will is that with San Diego's constant warmer temperatures, many animals go into sleep coma in the afternoons. If you come in the PM, you're more likely to find all the animals snoozing or hiding indoors.