Category: 2025

Up at dawn again for another short boat trip before breakfast. This time we visited the Pahuachiro Creek. The water here is very dark, a result of tannins from the vegetation along the bank. It is the start of the rainy season. This close to the equator it is hot and humid all the time. There are only really two seasons: wet and dry. At the peak of the wet season much of the forest is flooded. We could clearly see the high-water mark on the trees. A good two or three metres above the current level. This makes the jungle almost impenetrable. With a small canoe you can travel a short distance from the river course but it is slow and difficult.

The water in the main river is a chocolate brown colour because of all the silt it is carrying. Where the black water from the creek meets the main river the two types of water do not mix immediately but swirl around each other in intricate patterns. This is the place for the river dolphins. They hunt fish that have been confused in the merging currents. The dolphins use their echo location to hide in the murky, silt laden water and then dart out to catch the hapless fish. The Amazon River Dolphins are pink and have a bulbous head that is part of their echo location system. Slightly smaller are the Tucuxi  dolphins which are grey and look a little like Bottlenose Dolphins. We saw both types but they are very hard to photograph. You need some sort of precognition to guess where they are going to pop up next.

After breakfast, we went for a walk. Every time we walked in the jungle, we were warned not to casually touch things, not to lean on the trees and to be careful where we placed our hands and feet. This is seriously important advice. Shortly after setting off, we were shown a judgement tree. This is a tree that has become infested by fire ants. The trunk is riddled with holes and few ants can be seen running around. However, if you bang the tree then loads of ants come out. Traditionally, bad people would be stripped and tied to the tree. The village shaman would then hit the tree with a big stick. This “judgement” could be fatal. Shortly after pondering this lethal tree I came across a fuzzy blob on another tree trunk. This turned out to be a mass of caterpillars. What I didn’t realise at the time is that these can be equally fatal. The caterpillars of the Lonomia obliqua moth possess a uniquely potent anticoagulant venom. Wikipedia says “A typical envenomation incident involves a person unknowingly leaning against, placing their hand on, or rubbing their arm against a group of these caterpillars that are gathered on the trunk of a tree. The effects of a dose from multiple caterpillars can be dramatic and severe, including massive internal hemorrhaging, kidney failure, and hemolysis. The resulting medical syndrome is sometimes called lonomiasis. Death may result, either rapidly or after many days following envenomation”.

At the end of the walk, we spotted a sloth. In typically sloth fashion it was hanging from a tree looked like an abandoned bag of wet fur. Photographing sloths requires patience. They do not move very much and it sometimes hard to determine where the sloth ends and the tree begins. Eventually this one did move and not only did I managed to get a picture of its face but I could also spot that it was carrying a baby.

After lunch, while we were all snoozing, the boat moved further up the river. Here was a small village where we had been invited to see the release of some turtles. The yellow-spotted river turtle is one of the largest turtles and has been on the endangered list for a while. It has been hunted for food and was also exceedingly popular as a pet in the USA. Fortunately, now some work is being done to protect the turtles. The villagers collect turtle eggs and then protect them while they hatch. Once the baby turtles’ shells have hardened, they can be released into the wild with a much better chance of survival. We arrived at the riverbank by the village to find buckets full of baby turtles, all ready to be set free. Diane loved this. She carefully carried a bucket to a marked area by the water and tipped them out. The turtles knew exactly what to do and headed straight down the slope for the water. It was great to watch.

From Arequipa we flew back to Lima, yet again, for the New Year celebrations. The party was typically Peruvian and involved a massive and completely unorganised firework display on the clifftops of Miraflores. It was rather magnificent and chaotic. The park area was packed with people and colourful ordnance exploded all around us. Great fun. Two days later we flew to Iquitos to join an Amazon River trip. From the plane we could see the vast tracts of jungle with the river winding its way through it.

The Amazon basin is huge. Seven million square kilometres. The Amazon River is the largest in the world by discharge volume. It is also the longest, depending on how you measure these things. Near the head of the river, in north-east Peru, is the city of Iquitos, population 50,000. This is the world’s largest city that cannot be reached by road or rail. Average temperature 32°C with 80% humidity. Hot and sweaty. Not really my favourite environment but we wanted to experience a rainforest, or at least, I did, so we just had to put up with it. One of the selling points of the river boat we were joining was air-conditioned cabins. At least would have a cool refuge.

From Iquitos we were driven, on the only road, to the small town of Nauta, population 2,000. Nauta is located on the north bank of the Marañón River, a few miles from its confluence of the Río Ucayali. On maps, the point where the rivers join is the highest place that is named the Amazon River.

The river boat, called the Delfin II, operates several long, narrow, steel hulled boats that they call skiffs. Each of these has two rows of seats for a dozen people and two outboard engines on the back. The boats have to be quite tough because there is a lot of wood and other debris floating in the river. We were collected and taken to the Delfin which was holding station just offshore. Here we were introduced to our cabin. The accommodation was rather nice. A large picture window, good sized bed, nice bathroom and the all-important air-conditioning. It seemed like a significant part of the design of the river boat was to support the generators and heat exchangers necessary to run all the cooling systems. I was struck by the same contradiction that we experienced in Thailand. The general approach to dealing with global warming is to try and use less energy. But the way to deal with living in hot places is to use more energy so that you can keep cool. We had an excellent dinner and then went straight to bed with the warning that we were going to be up before sunrise the next day.

The best time to explore the jungle is early in the morning. I had to reluctantly admit this. Neither of us are really morning people but the advantages are clear. It is a bit cooler but perhaps more importantly this is when most of the birds and animals are active. By lunchtime the rainforest is relatively quiet. Earlier it is buzzing with creatures all going about their business. So, up early, before breakfast and off in the skiffs. We saw many birds including Red-capped cardinal, Kiskadees and some hawks. We also saw a pair of Hoatzin birds. These are unusual amongst birds in that they only eat plants. To consume the vegetation, they have unique digestive system, which contains specialized bacteria in the front part of the gut. This ferments the food, mostly leaves, a process that produces a lot of ripe methane. Locally they are known as “stinkbirds” and are generally avoided by hunters. Apparently, they not only smell bad but also taste bad. Clever birds. Another clever aspect is that the chicks have claws on their wings. This allows them to climb around the tree where they nest. If attacked by predators such as great black hawks, the chicks will jump into the water and hide under the nest while the parents distract the attackers. Later, they can use their claws to clamber back into the nest.

After breakfast, we went for a walk. Walking in the rainforest is not entirely straightforward. We were equipped with Wellington boots, waterproofs and bottles of water. We also applied mosquito repellent and suns screen. It was hot and sweaty. Within a few minutes my shirt was soaked and after an hour my hands were going wrinkly as if I had been in a swimming pool. The forest was dense and reached high above us. So much so that there was not much light. Taking photographs was difficult. No just because of the low light but also because of condensation forming on the lens. We had a local guide who tended to wander off into the forest and then reappear with interesting things. First up was a red backed poison frog. These secrete poison through their skin to deter predators. The frogs are only small but the poison is nasty. Not necessarily fatal to humans but it will kill smaller mammals. Our man was careful to just hold the frog by its leg. Next up was a tarantula spider. Not sure exactly what type but it was enormous, for a spider. Maybe 12 cm long. Then we were shown a Boa constrictor which hissed at me and finally an Anaconda. This looks a little strange in the picture because it had just eaten something. After a couple of hours of walking we were more than happy to get back to our lovely cool cabin for a shower before lunch and an afternoon siesta.

Early evening, we were out again in the skiffs. This is the happy hour for mosquitoes, so we applied extra repellent. Even so, they munched on Diane quite a lot and she came up with many lumps and bumps. We saw Black-capped donacobius, several hawks and a few White-eared jacamar. There were bats on trees. These were a little hard to see. Proboscis bats are only small and blend into the tree bark. From any distance they look like leaves but get closer and you spot the details. Finally, there were monkeys. Squirrel monkeys. A big troop of them. Tricky to photograph because they are small, tend to stay far away and also like to stay hidden behind the leaves and branches. Terrific to watch as they leap around in the canopy. As dusk fell, we headed back to the Delfin II for another excellent dinner and another early night.