The night before I leave, I don’t sleep. My rucksack slouches in the corner, half-unpacked—not because I’m disorganized, but because I’ve read that lighter luggage means a smaller carbon footprint. I lie there, staring at the ceiling, running through a mental checklist: Will my torchlight startle the caimans? Will my Spanish stretch beyond “dos cafés, por favor”? And, most importantly—can one anxious, overthinking traveler actually make a difference?
Morning arrives, brittle with caffeine and nerves. At Heathrow, I sidestep the duty-free perfume sprays (tiny victories) and book the most direct flight. The woman beside me asks where I’m headed. “To count crocodiles,” I say, and she laughs like I’ve just delivered the world’s most absurd one-liner. When I add that I’ve paid to plant mangroves to offset my flight’s emissions, she grins and calls me “Eco-Indiana Jones.” I laugh, but inside, I’m terrified I’ll be more bumbling intern than intrepid explorer.
San José greets me with a crack of thunder and the smell of wet earth. Two rattling buses and a wooden boat later, the canals near Caño Palma unfold—dark, glassy, alive. The air hums with howler monkeys and the slow drip of rain. The research station’s solar panels glint in the sunset, winking at me like old friends. Home for the next 9 months.
Fieldwork begins at dusk. Kneeling in a canoe, I grip the GPS like it might leap into the water. “Ojos,” whispers the guide. Amber eyes gleam just above the surface—a caiman, watching. My pulse thrums in my throat. We note its size, the moon’s phase, the exact GPS coordinates. I switch my headlamp to red light, gentler on their eyes, softer on my conscience. Every entry in the logbook feels like a whispered promise: I see you. I’ll do my part.
The days settle into a rhythm—part monk, part scout. Solar power runs the laptops from ten to three; after that, we work by lamplight or not at all. I wash my clothes in greywater, string them between palm trunks. Banana peels go straight to the compost trench, where green shoots elbow through yesterday’s coffee grounds. My proudest possession? A jam jar labeled “Plastic—ALL of it.” So far, it holds only one chocolate wrapper. Progress.
On my last night, the lagoon is still as butter. Bioluminescence freckles each paddle stroke—a secret language only the water understands. I whisper thanks—to the caimans for tolerating my fumbling, to the mangroves I’ll never see grow tall, to the bus driver who chuckled when I refused a paper ticket and snapped a photo instead.
At dawn, I shoulder my rucksack. It’s heavier now—not with souvenirs, but with the weight of mud-caked boots, the scent of rain-soaked soil, and the quiet conviction that travel doesn’t have to cost the earth. Maybe sustainability isn’t about grand gestures. Maybe it’s just this: going slow, leaving light, and listening—really listening—to the world as it whispers back.
