Almost every Costa Rica itinerary faces west: Arenal, Monteverde, then a Pacific beach. This one faces the other way. The Caribbean coast has its own language, its own food and its own weather, and the two places that define it — Tortuguero and the Talamanca coast around Puerto Viejo — are among the least crowded, most wildlife-dense corners of the country.
You start somewhere no road reaches. Tortuguero is a village on a sandbar between the canals and the sea, reached by boat, where green turtles have nested for longer than anyone has kept records. From there you go south to Puerto Viejo and Cahuita: reef-sheltered beaches backed by forest, a national park you can walk along the sand, rice and beans cooked in coconut milk and a Bribri family that grows the cacao you will drink. Then you cross the country to La Fortuna — our home — for the volcano, the waterfall and the hot springs, and fly out from San José three hours away.
The timing is the other reason to do it. The Caribbean's driest months are September–October and February–March — September and October are exactly when the Pacific is at its wettest — and green turtle nesting in Tortuguero peaks from July to October. If you are travelling in the green season, this is the route that works best.