If I understand correctly. a red flag at a beach means dangerous conditions, strong surf or currents. It looks to me like the risk is terminal boredom at the resort at the end of Playa Langosta. I don't know if that is technically a river or estuary in the mid-ground but, with the tide going out, the flow at its mouth was swift. As best I can tell the place is popular with Central and South Americans, particularly Brazilians. Nobody seems excited by their visit.
Only the deep of the Pacific lies beyond. Playa Langosta, Costa Rica, again. That's as far as I would go.
A Tico hidden gem, Cataractas Llanas de Cortes. It's not far off the Pan American Highway (gee whiz fact - Mrs. C and I are the only people we know who have been to both ends of the Pan American Highway) south of the provincial capital of Liberia but the turnoff is poorly marked and we drove past it. When Google Maps re-oriented us there were two or three kilometers of bumpy gravel road to the parking lot. We visited with a guide some years ago and the path down was very rough. There are new concrete stairs and a rope to hold, making it possible for my knees to make the climb.
When you get to the pool at the bottom you feel like you are well apart from the world. The escape doesn't last long enough.
Now all we need is a yellow submarine and the scene will be complete. For all I know the Costa Rican coast guard has a cheery little vessel floating under the waves. This is part of the view from our condo's balcony.
Near sunset, Playa Langosta, Costa Rica. This part of the coast is strewn with black volcanic rock, indicative of violent geological origins.
