The combined garden and zoo visit in Nassau is a low-key, slightly old-school Caribbean attraction. Expect a peaceful but modest experience: shaded paths through tropical plants, a small collection of animals (mostly birds, iguanas, some monkeys, and a few big cats in dated enclosures), and a decent aviary. It's not world-class, but it's calm, green, and a pleasant contrast to beaches and cruise port chaos. The whole thing takes 60-90 minutes at a relaxed pace. It's best in the cooler months (December to April) when it's less humid and the animals are more active. Avoid midday in summer — it gets brutally hot and the animals hide.
Expect to pay around $25-40 per person including transport from central Nassau. It's not cheap for what you get, but the price usually covers a basic guided walk. Honest tips: go early in the morning when it's cooler and the birds are loudest. Pick the gardens over the zoo sections — the plant life and flamingos are the real highlight. You can safely skip the reptile house and the snack bar; neither is impressive. Wear insect repellent and decent walking shoes. It's a decent half-day choice if you want something gentle and different, especially with kids or if you're not up for another beach day.