Clicking away, and trying not to attract their attention, everyone gets the photos they're after and, feeling satisfied, we head back to the ship to sip cocktails kebun binatang terdekat on sun loungers while listening to live jazz.
That's the beauty of cruising 'round Southeast Asia. After exploring historic temples and perusing bustling local markets, you can retreat to the luxury of the mid-sized ship with its champagne bars, fine dining restaurants, casino and lavish spa. Most exciting of all, you nearly always wake up in a new destination every day.
We had started our adventure in Bogor, about 38 miles south of Jakarta, with a visit to the Taman Safari Park, one of the world's most successful breeding centres for endangered species. Tigers, rhinos and Chinese bears are just some of the animals found there.
But organized tours can be a bit rushed, so when we reach Lombok, we decide to explore alone. We barter with a taxi driver for a fair price, then for the next five hours, he amazes us with his knowledge.