It is with regret that we leave Costa Rica. In our six weeks here we have criss-crossed the country backwards and forwards. We know the dirt roads and potholed highways, the river crossings. We have seen the terrain change from jungle to swamp to grassy plains. We have eaten at roadside shacks on mountain passes and drunk coffee in townships under smoking volcanos.
To have come back here with Arthur and Matilda, and to see it all again through their eyes, has made this trip quite emotional for Menna and I. Particularly in a time of declining biodiversity. We often felt the shadow of generational guilt over the ecological uncertainty that we know our children will inherit. Now in a little minibus, rattling along the northern roads heading to the Nicaraguan border, we talk again about the wildlife and nature in this extraordinarily rich corner of the world. We make sure to preserve the memories.
The flock of toucans circling around our cabin, chattering and screeching, then sweeping down the hillside to attack a fruit tree below us.

An iguana making a suicidal dash across the scorching tarmac as we drive down the coastal highway. His feet flapping as though he was trying to run over water.
Poison dart frogs squatting on leaves, glistening with a strange sticky luminescence.
Dark shaded forests with strange mammals in the undergrowth: agoutis like great ginger hamster-dogs, their hind legs strangely pink and hairless; dark and muscular herds of tusked peccaries shouldering their way through thickets; elegant coatis and giant squirrels; spider monkeys linking limbs to make bridges between branches far above; mossy sloths hanging like green termite nests. Howler monkeys roaring at dawn.

There was an encounter with fer-de-lance, the most aggressive and venomous snake in the region. We passed a step away from where it lay coiled in the leaves, cold and unmoving like a twisted liana, only realising it was there when a park ranger behind us called us back. I wonder how many other snakes we have brushed past unseeing – or nearly stepped on – in all of our forest walks; how often we have unthinkingly grabbed branches from which they had slipped away silently only seconds before.
We leave with a whole mosaic of Costa Rican birds imprinted on our retinas: Tanagers, oropendulas, trogons. A trio of lineated woodpeckers at work high up on a telegraph pole. Kingfishers looping and dipping along the ocean shore. Scarlet macaws at sunset. Ospreys above a volcanic lake. A green toucanet in the Quetzales cloud forest, utterly still on his branch like a mossy outcropping.
We saw an anteater climbing a tree, slow and graceful, inhaling a trail of bugs as he went. It was a frantic morning and we were trying to pack up camp in a hurry, but he held us all transfixed, pointing and grinning, for ten minutes amidst the chaos.

Nature wasn’t always our friend. Matilda remembers being hit in the face as she trailed behind us in the Cahuita National Park. It was a heavy green fruit and the shock and pain of it made her scream. Then another fruit crashed into the sandy path right next to her, and suddenly they were raining down. There were no fruit tree above us though. It took us a while to spot the troupe of white-faced capuchins high up in the canopy. They were cackling and hooting, hopping on their branches, deliberately pelting us. Their aim was good and we had to run.
We have learned to live with the mosquito, the fly, the sea louse and many other biting and stinging creatures that left their marks on our skin. We have rolled in jellyfish tentacles in the waves, leaving acidic burns coiled around my forearm, angry red stripes across Arthur’s torso. I have had a cockroach run across my face in the dark.
We were excited to see a raccoon and her cubs wandering up to us once as we eat dinner outside. She was so pretty! As I stood to shoo her away, she held her ground and snarled at me, a row of needle-sharp teeth in her pretty little mouth. Then she stepped towards me! She was totally unafraid and I was not sure what to do. I wasn’t overly eager to get a raccoon bite then a series of rabies injections. So I sat back down ashamed and let her forage at her leisure. A long dark night of the soul ensued (faced down! By a small mustelid!) as I was forced to question my place in the food chain.

On goes the memory game, as the miles roll past, trailing us through kingdoms and species, branching down taxonomic lines. Our minibus is filled with the sounds of the forest, with colours and smells, awe and excitement, with fear relived.
We will come home from this trip poorer, and re-entry will be hard. But converting our savings into the currency of memory and experience is something we will never regret.
Costa Rica ¡Pura Vida! Adiós.