What to pack for Arenal: the rainforest checklist

A practical, honest packing list for Arenal and La Fortuna, based on firsthand experience in Costa Rica’s rainforest.

Packing for Arenal is different from packing for a beach vacation or a mountain hike. The rainforest is humid, unpredictable, and full of life. You will likely experience sun, sudden downpours, mud, and cool evening breezes all in the same day. The key is not to bring everything you own, but to bring the right things that work together.

This checklist comes from years of guiding friends and visitors through the trails around La Fortuna, the Arenal Volcano, and the nearby hot springs. It is not about fancy gear. It is about being comfortable, dry, and ready for whatever the forest sends your way.

Clothing: layers and quick dry fabrics

Cotton stays wet and heavy in the rainforest. Instead, pack synthetic or merino wool shirts and pants. Long sleeves and long pants protect against sun, mosquitoes, and scratchy plants. A lightweight, waterproof rain jacket is essential. Even if the sky is clear at breakfast, a sudden afternoon shower is almost guaranteed. For footwear, bring sturdy, closed toed hiking sandals or waterproof hiking shoes. Flip flops are fine for the hot springs or the hotel, but not for trails. A wide brimmed hat and a buff or bandana help with sun and sweat.

Rain gear and dry bags

A small, packable umbrella is useful for quick walks around town. But for hikes to La Fortuna Waterfall or Mistico Hanging Bridges, a proper rain jacket is better. A dry bag or a heavy duty zip lock bag protects your phone, camera, and wallet. Even if your backpack claims to be water resistant, a dry bag inside is cheap insurance. Bring a second pair of shoes or sandals for evenings. Nothing ruins a good dinner like soggy socks.

Insect repellent and sun protection

Mosquitoes are active year round, especially near water and at dusk. Use a repellent with DEET or picaridin. Apply it before you put on sunscreen. Sunscreen should be reef safe and high SPF. The sun is strong even through clouds. A small bottle of after bite cream or antihistamine can save you from itching later. Also bring lip balm with SPF.

Health and safety basics

Pack a small first aid kit with bandages, antiseptic wipes, and blister pads. Diarrhea medication and rehydration salts are wise. Tap water in La Fortuna is safe to drink, but if you have a sensitive stomach, bring a reusable water bottle with a filter. Hand sanitizer and wet wipes are useful after touching trail railings or before eating. A headlamp or small flashlight is invaluable for early morning hikes or unexpected power outages.

Extras that make a difference

A reusable water bottle with a wide mouth is easier to fill at waterfalls or hotel filters. A small travel towel dries fast and packs small. A power bank keeps your phone charged during long days. Binoculars are worth the weight for spotting toucans, monkeys, and sloths. A notebook and pen for jotting down bird names or trail tips. And one extra pair of socks. You will thank yourself.

Final thought

You do not need to buy a whole new wardrobe. Start with what you have, then add a few key items like a rain jacket and good shoes. The rainforest is forgiving if you are prepared. The best souvenir is a dry, comfortable day spent exploring.

Your next step: lay out everything you think you need, then remove half. Pack the rest in a carry on sized bag. You will move easier, hike farther, and enjoy more.