Costa Rica Packing List: Complete Adventure Tour Guide

Costa Rica has two distinct seasons: the dry season (December through April) and the green season (May through November). Most travelers assume the dry season means no rain. That assumption leads to wet shoes on day two. Even during the dry season in Guanacaste, afternoon showers hit without warning, especially near the coast and in transitional zones between Pacific lowlands and inland hills.

The Arenal region operates differently. It receives rainfall nearly year-round, with the rainforest maintaining consistent humidity above 80% regardless of season. Playas del Coco and the greater Guanacaste coast stay drier from January through March but can reach temperatures above 95°F (35°C) during peak dry months. Packing for a multi-region tour, which many private tour clients do when combining Arenal with Guanacaste, means packing for both extremes within the same bag.

In practice, the most effective packing strategy is a layering system built around moisture management, not waterproofing. You cannot waterproof yourself in a Costa Rican rainforest. You can, however, dry out fast enough that getting wet becomes a minor inconvenience rather than a miserable day.

The clothing on your Costa Rica packing list should prioritize function over style. This is not the trip for denim or structured cotton button-downs. Pack for movement, heat, and the reality that you may end up muddy, soaked, or both before noon.

Bring three to four synthetic or merino wool moisture-wicking shirts. Long-sleeve options protect against sun exposure during open boat tours and against insects in forested areas. A common mistake is packing only short sleeves to stay cool. In direct sun on a catamaran or during a mid-day ATV ride, a lightweight long-sleeve UPF 50 shirt is cooler than sunburned bare arms within two hours.

Board shorts or lightweight nylon hiking shorts work for most daytime activities. Pack two pairs at minimum. Zip-off convertible pants are genuinely useful for multi-activity days where the morning involves a jungle hike and the afternoon involves a boat tour.

A packable rain jacket with a hood is essential. Not a poncho. Ponchos catch wind and do not allow free arm movement during zip-lining, ATV riding, or river rafting. A fitted, packable jacket that compresses to the size of a water bottle takes no meaningful luggage space and works across all activity types. Waterproof does not mean breathable, so look for jackets with mesh lining or pit-zip vents to avoid overheating in high humidity.

Pro tip: Pack one lightweight, long-sleeve shirt specifically for evening use around Arenal. Temperatures drop after sunset near the volcano, and mosquitoes are active. A single layer of coverage handles both without adding bulk to your bag.

Footwear is the single most impactful packing decision for a Costa Rica adventure tour. Bad shoes lead to blisters, slips, and injury. Most experienced guides at Private Tours Costa Rica will tell you that guest injuries are almost always footwear-related.

A pair of low-cut trail running shoes or light hiking shoes with aggressive rubber soles handles the vast majority of tours. Full ankle-height hiking boots are overkill for most Guanacaste and Arenal trails and add weight and heat. The exception is serious multi-day trekking or technical volcano ascents, where ankle support matters.

Whatever you choose, break them in before you arrive. A new pair of trail shoes will cause blisters on a three-hour waterfall hike if they have never been worn beyond the store parking lot.

Bring closed-toe water sandals such as Tevas or Chacos rather than standard flip-flops. Open-toe sandals with a back strap provide grip on wet dock ramps, river crossings, and boat decks where flip-flops become a safety hazard. They also work for casual walking around Playas del Coco without looking out of place.

A common mistake is packing three separate pairs of shoes: hiking boots, flip-flops, and sneakers. That approach wastes valuable luggage space. Trail shoes plus one pair of water sandals covers every activity on a standard Costa Rica adventure itinerary.

Beyond clothing, your gear selection determines how comfortable and capable you are across different tour types. Private tour guides carry safety equipment, first aid kits, and activity-specific gear for guests. What they cannot supply is your personal comfort and electronic protection.

A 20 to 25-liter daypack is the ideal size for most tours. Large enough to carry water, rain gear, a camera, snacks, and a change of clothes. Small enough to stay manageable on zip-line platforms and boat landings. Avoid waist-pack style bags for jungle hikes as they restrict movement and carry too little water.

Inside the daypack, a dry bag or waterproof pouch for your phone, passport copy, and camera is non-negotiable on any water-based tour. A cheap PVC dry bag from any outdoor retailer costs under $15 and protects hundreds of dollars worth of electronics from rain, spray, and accidental drops.

A 1.5 to 2-liter insulated water bottle matters more than most people expect. Costa Rica's heat and humidity cause dehydration faster than most travelers anticipate, particularly during active tours like ATV rides or river rafting. Guides will typically have water available but having your own supply keeps you independent and hydrated between stops.

Sunscreen, a wide-brim hat, and UV-protective sunglasses round out sun protection. Choose a hat with a full brim rather than a baseball cap since side and neck sun exposure during boat tours causes the majority of tourist sunburns in Guanacaste.

Pro tip: Bring two pairs of polarized sunglasses. One for daily use and one as a backup. Losing your only pair on day one of a seven-day tour that includes open ocean fishing and beach excursions is an expensive and uncomfortable problem. Polarized lenses also help significantly when spotting wildlife in bright forest canopy light.

Costa Rica is a safe destination with good medical infrastructure in major tourist areas. That does not mean you should skip a basic health kit. The items below address the most common issues that affect adventure travelers, based on what guides and tour operators see repeatedly in the field.

DEET-based insect repellent at 25% or higher concentration is the proven standard for mosquito prevention. Products like Sawyer Picaridin or 3M Ultrathon are available internationally and have been tested in tropical environments. Natural alternatives perform poorly in high-humidity jungle conditions where insects are dense.

Pack hydrocortisone cream or antihistamine tablets for itch relief if you react strongly to bites. This small addition prevents a night of scratching from derailing the following day's tour.

Traveler's diarrhea is the most common health complaint among international visitors to Central America, according to the CDC. Tap water in major Costa Rican tourist hubs is generally safe, but ice in remote areas and street food prepared with local water can cause issues. Pack oral rehydration salts and a basic anti-diarrheal medication as insurance.

"Travelers' diarrhea affects 30-70% of international travelers depending on destination and season. Having appropriate medication on hand reduces trip disruption significantly." - Centers for Disease Control and Prevention, Travelers' Health Division

A compact personal first aid kit should include adhesive bandages in multiple sizes, blister treatment pads (specifically gel-based ones for waterfall hike days), antiseptic wipes, and any prescription medications you take regularly. Motion sickness medication is worth including if your itinerary includes boat tours, as the Pacific swell off Guanacaste can be significant from July through October.

Catamaran day trips, sport fishing charters, and ocean snorkeling excursions out of Playas del Coco require a slightly different gear approach than land-based tours. The main differences are sun exposure, salt water, and motion.

Pack a rash guard in addition to your swimwear. A rash guard provides UPF protection without requiring repeated sunscreen reapplication while in and out of the water. It also protects against jellyfish brushes and friction from snorkeling equipment. A one-piece swimsuit or board short and rash guard combination is more practical than a bikini alone for active ocean tours.

Reef-safe, mineral-based sunscreen with SPF 50 is the only option that complies with marine protected area rules near the Guanacaste coast. Brands like All Good, Raw Elements, or Badger are widely available internationally. Pack more than you think you need. Sun reflection off water doubles effective UV exposure, and most people apply about 25% of the recommended amount.

Keep electronics in a waterproof case or dry bag during any ocean tour. Salt spray reaches everything on deck within the first 20 minutes. Assume everything will get wet and plan accordingly rather than hoping it stays dry.

Catamaran day trips, sport fishing charters, and ocean snorkeling excursions out of Playas del Coco require a slightly different gear approach than land-based tours. The main differences are sun exposure, salt water, and motion.

Pack a rash guard in addition to your swimwear. A rash guard provides UPF protection without requiring repeated sunscreen reapplication while in and out of the water. It also protects against jellyfish brushes and friction from snorkeling equipment. A one-piece swimsuit or board short and rash guard combination is more practical than a bikini alone for active ocean tours.

Reef-safe, mineral-based sunscreen with SPF 50 is the only option that complies with marine protected area rules near the Guanacaste coast. Brands like All Good, Raw Elements, or Badger are widely available internationally. Pack more than you think you need. Sun reflection off water doubles effective UV exposure, and most people apply about 25% of the recommended amount.

Keep electronics in a waterproof case or dry bag during any ocean tour. Salt spray reaches everything on deck within the first 20 minutes. Assume everything will get wet and plan accordingly rather than hoping it stays dry.

• Do I need to bring my own snorkeling gear for ocean tours?

No. Private Tours Costa Rica provides snorkeling equipment, life jackets, and safety gear for all ocean and water-based excursions. You only need to bring your rash guard, reef-safe sunscreen, and a dry bag for personal items. If you have a prescription mask or are particular about equipment fit, bringing your own mask is a reasonable choice but not required.

• What is the best type of bag for adventure tours in Costa Rica?

A 40-liter roll-top or front-loading travel backpack paired with a 20-liter daypack is the most practical combination. The larger bag stays at your accommodation during tours while the daypack carries everything you need for the day. Rolling suitcases work fine for resort stays but become a liability on dirt roads, muddy trails, and small transfer vehicles used in Guanacaste and Arenal.

• How much cash should I carry on tour days?

Carry a modest amount of local currency (Costa Rican colones) for tips, small purchases, and markets. Most private tours include entrance fees and meals as part of the itinerary, so large cash amounts are unnecessary. ATMs are available in Liberia, Tamarindo, and La Fortuna but can be unreliable in very remote areas. Withdraw what you need before heading to smaller communities.

• Is travel insurance necessary for adventure tours in Costa Rica?

Travel insurance is not optional for adventure tourism. Activities like zip-lining, ATV riding, river rafting, and sport fishing carry real physical risk. Standard trip cancellation policies often exclude adventure sports. Look specifically for a policy that covers medical evacuation, adventure activity injuries, and trip interruption. The cost is modest relative to the financial and medical risk of going without it.

• Can I do laundry during a multi-week trip to Costa Rica?

Yes, and it is a practical solution for longer trips. Laundry services (known locally as lavanderias) are widely available and inexpensive throughout major tourist towns including Playas del Coco, Tamarindo, and La Fortuna. Same-day or next-day turnaround is common. Knowing this, you can pack fewer clothes and re-wear quick-dry items two or three times between washes without any discomfort or hygiene issue.

• What documents should I keep in a waterproof pouch?

Keep a color photocopy of your passport, your travel insurance policy number and emergency contact, and any tour confirmation details in a waterproof document sleeve inside your daypack. Store your actual passport in your hotel safe during active tours. Your guide will need only your identification information at park entrances, and a copy is sufficient for that purpose in most cases.

• What is the difference in packing needs between the dry season and green season tours?

During the green season (May through November), pack one extra quick-dry shirt, two extra pairs of socks, and expect your hiking shoes to get wet daily. Trails are muddier, rivers are fuller, and afternoon downpours are predictable. The upside is that waterfalls are at peak flow and wildlife is more active. During the dry season, sun protection and hydration become the primary concerns. Either season rewards packing light and technical over heavy and casual.