A mostly gravel road, it approximately follows the coastline of southern section of the
Nicoya Peninsula. It starts at the end of
Route 21 at the Naranjo ferry terminal, and goes south to the
Paquera ferry terminal, this section is paved. From there it turns west and goes near the beach and airport of
Tambor and then the town of
Cóbano. The northwest bound segment of the road from here to
Puerto Carrillo can only be driven in the dry season, and only with off-road capable vehicles. There are many river and creek crossings without bridges. From Puerto Carrillo the road continues its general northwest direction but becomes a well maintained gravel road that can be driven during the dry season. In the wet season there is a highly chance for a needed river crossing between Nosara and Ostional. It passes many beaches and tourist areas including
Sámara,
Nosara and the
Ostional Wildlife Refuge. At
Veintisiete de Abril the road turns to a northeastern direction, becomes paved and continues until it meets again with
Route 21 at
Santa Cruz In
Guanacaste province the route covers
Nicoya canton (
Sámara,
Nosara districts),
Santa Cruz canton (
Santa Cruz,
Veintisiete de Abril,
Cuajiniquil districts),
Nandayure canton (
Zapotal,
Bejuco districts),
Hojancha canton (
Puerto Carrillo district). In
Puntarenas province the route covers
Puntarenas canton (
Paquera,
Cóbano districts). ==History==