Amazingly, the actual Guajataca Tunnel (pronounced gwa-hah-TAH-kah) was the least interesting part of this hike. And the tunnel was fantastic! But, as always happens when you’re as open to new discoveries, we found so much more.
We hiked through the tunnel and westward along rocky cliffs, with dazzling turquoise sea to our right.
We forked left and crossed a butterfly meadow, filled with plants that attract and feed those lovely insects, such as calotropis procera, and oplonia spinosa, almendro (terminalia catappa), jayajbico (erithalis fruticose). Here are the ones we saw, plus a caterpillar of unknown type.
We later learned it was in fact a frangipani worm and not a caterpillar at all. They can grow up to 6 inches long, travel in hordes, do an incredible amount of damage, and eventually turn into big brown moths.
Puerto Rico does have its own species of monarch butterfly called the macho monarca, which doesn’t migrate. Unfortunately, it doesn’t pose for pictures, either! But here’s one from USDA.
The macho monarca can also be found in the Virgin Islands, Cuba, the Cayman Islands, St. Lucia and Jamaica.
We found a posterboard about this butterfly and its diet when we exited the tunnel back into the park.
Hiking back along the ocean, powerful waves exploded against jagged boulders rising up from the shallow sea. We passed several remnants of wooden boats that we speculated might have carried aspiring migrants across the ocean from Haiti.
We also found wooden steps, yawning caves, a few creatures, and even a lone dead crab, perfectly preserved on the sand.
The tunnel itself, which connects the towns of Quebradillas and Isabela, is a remnant of the sugar cane era, when trains were used to transport sugar cane from the farms in the area.
Local artists have given walls some color with murals, and we found local artisans and food vendors.
The white-sand Playa Guajataca beside it, protected by a glorious grove of palm trees, stretched east to a campground and river. Settle into your beach chairs and you will enjoy a lot of shade and gorgeous cliff views.
Take this hike!
