Carara National Park

Carara sits at a biological crossroads where the dry forests of the Pacific northwest give way to the humid lowlands of the south, and that transition makes it one of the most productive patches of woodland in the country.

The park protects a dense mosaic of mature rainforest, secondary growth, and riparian corridors along the Río Tárcoles, and you feel that variety the moment you step onto the main loop trails at first light. The canopy closes overhead, the humidity hits you squarely, and the noise is immediate.

Scarlet Macaws are the headline act, and for once the reputation is deserved. Pairs and small groups fly between fruiting trees through most of the morning, calling loudly enough that you often hear them before you spot them. Spend time along the riverside trail if you want Riverside Wren, which keeps low in the tangled understorey near water and rewards patience rather than speed.

Royal Flycatcher is present but genuinely elusive — scan fallen logs and shaded stream edges, and accept that you may leave without seeing the crest displayed. Turquoise-browed Motmot turns up reliably in more open secondary growth near the park entrance.

Access is straightforward. The park sits roughly ninety minutes south-west of San José on the coastal highway, and the Río Tárcoles bridge just north of the entrance is worth a stop for both crocodiles and waterbirds. Local guides operate out of Jacó and Tárcoles village, and hiring one for your first morning is worth every penny. Accommodation ranges from basic guesthouses in Tárcoles to mid-range lodges in Jacó.

Bring rubber boots for the riverside trail, a decent scope for macaw-watching in the canopy, and strong insect repellent; the dry season, December through April, gives you the most comfortable conditions underfoot.