Step 1: Pick your quest
- Birds → Monteverde, Carara, Sarapiquí, La Fortuna
- Sloths and monkeys → La Fortuna, Manuel Antonio, Tortuguero
- Cloud forest → Monteverde
- Wilderness → Osa Peninsula
- Wetlands and boats → Tortuguero, Palo Verde
- Whales → Drake Bay, Uvita (seasonal)
Step 2: Seasons
| Period | Pacific & north | Caribbean | Nature notes |
|---|---|---|---|
| Dec–Apr | Dry season; dusty in Guanacaste | Still showery | Popular birding season; book early. |
| May–Nov | Green season; afternoon rain | Often drier around Sep–Oct | Lush forest, fewer crowds, some rough roads. |
| Year-round | — | — | Monteverde is cool and misty at any time. |
Step 3: Difficulty guide
| Level | What it means | Examples |
|---|---|---|
| Easy | Flat or gentle paths, under 3 km, slow pace | Sloth walks, canal tours, most night walks |
| Moderate | Uneven, muddy or stepped trails, 3–8 km | Monteverde reserves, Manuel Antonio side trails |
| Challenging | Steep stairs, heat, long days, wet landings | Río Celeste, Corcovado day trips |
Step 4: Getting around
Shared shuttles connect most nature hubs. Car rental gives flexibility but mountain roads are slow. Domestic flights save time to the Osa Peninsula and Tortuguero. Many tours include hotel pickup within a set zone, so check it.
Step 5: Packing basics
- Lightweight rain jacket and a warm layer for highlands
- Closed shoes with grip; quick-dry socks
- Binoculars (8x or 10x)
- Headlamp with a red-light mode for night walks
- Reusable water bottle, insect repellent, sun protection
- Dry bag for boat trips
Accessibility
Accessibility varies widely. Some hanging-bridge parks, boardwalks and park trails have wider, firmer sections, while boat landings and reserve trails can be difficult. Ask operators specific questions (distance, steps, surface, boarding method) and request written answers before booking.
Can a tour guarantee I will see a sloth?
No. Good guides greatly improve your chances, but wildlife is wild. Be wary of any listing that guarantees sightings.
Do I need a guide for national parks?
Corcovado requires an authorised guide. Many other parks allow independent visits, though a naturalist will usually help you see far more.
What is the best single region for a first nature trip?
La Fortuna is a flexible first base, and pairs well with Monteverde for contrast.