IF YOU GO
Hours: Cave tours are conducted from 8 a.m. to 1 p.m. every day, and the park is open for hiking until 4 p.m.
Getting there: Buses do not travel to Barra Honda, but you can take a bus to Nicoya and hire a taxi for about $24. (One bus can also drop you off 1km from the Barra Honda entrance.) With your own car, take Highway 21 east from Nicoya and follow the brown signs to Parque Nacional Barra Honda.
Admission: Entering the cave costs $29 for foreigners and $19 for nationals, and you must pay cash.
What to bring: Closed-toed shoes — you cannot enter the cave in flip-flops.