The US Navy and Vieques
When Bob and I lived in Puerto Rico in the 1990s, the US Navy owned a large chunk of Vieques. It had bought 22,000 acres, or about two-thirds of the island, from the native inhabitants in the 1940s, and used 8,000 acres on the western end of the island as a naval ammunition depot until 2001, when the property was returned to the island. You can read the history here, including Vieques residents’ health effects from the Naval presence and protests to force the Navy to leave the island.
But long story short, despite negative effects, the long US Navy presence meant that huge swaths of the island were never developed. So today it is the Vieques National Wildlife Refuge, considered one of the most ecologically diverse refuges in the Caribbean and the largest wildlife refuge in the region.
It has beautiful, undeveloped beaches and stellar snorkeling, and a few hiking trails. (Unfortunately, a large chunk of the land is not open to the public because of the danger from possible encounters with unexploded ordnance, which the Navy is slowly cleaning up.)
Beach Hopping & Snorkeling
Snorkeling and pristine beaches are the island’s main draws, and we came with our own gear, prepared to take advantage of both. With only 2½ days to explore, we could barely taste the multitude of beaches started with Chiva Beach (formerly the Naval Base’s Blue Beach), which had a bit of dried sargassum along its shoreline but was still lovely, with clear turquoise water and reefs just a short swim out. There were a number, but we did the best we could! The Vieques Insider website was a great resource for the best places to pull on our fins and masks and wade into the water.
Here are the highlights:
Chiva Beach: We passed a number of individual entrances to the beach, numbered, with parking for just one or two cars at each. We finally chose #10 and settled ourselves in the shade among the mangroves, when a huge iguana pooped spectacularly from a branch behind us. How often do you get to witness that? A little lizard also watched us curiously, and many majestic pelicans flew by.
I snorkeled there and saw some lovely coral and a multitude of undersea life. On my way back into shore, I found myself in the magical middle of an enormous school of dancing silverfish.
Caracas Beach: Caracas is a larger beach on a bay with lovely, calm water for swimming, and even parking, shelters, and even a bathroom, something the smaller beaches were lacking. There we relaxed on a concrete strip among the trees and watched the visiting horses wander around and forage in the garbage.
View from our perch 
Visiting horses looking for snacks
In fact, we ran into horses everywhere we went. Also, weirdly, a wild pig.
Esperanza Beach: Esperanza Beach, near the town by the same name on the south coast, is primarily a local hangout, a little grittier than the others because of the parking lot behind us in which men smoked weed and teens hung out, but we enjoyed its charms. Its most striking feature is a deserted concrete pier which provides an eerie, fascinating snorkel experience. You can dart between the coral-encrusted pylons and watch fish swimming in and out among old anchors and piles of thick rope abandoned on the seafloor below. I almost ran into huge purple jellyfish a couple of times. People claimed sea turtles hang out underneath the pier, but we weren’t lucky enough to see any. Kids jump off the pier into the water on weekends.
Black Sand Beach: We had to hike for six-tenths of a mile through lush woods to reach Black Sand Beach, though the GPS first took us down a long, incredibly bumpy, narrow dirt road to a cliff near the beach. Black Sand Beach is so named because it boasts volcanic sand, but we found it to be overhyped. The walk was lovely, but the beach itself was not a place where you would want to hang out, and the so-called “black sand” just made the area look dirty. However, the views of the sea crashing into the cliffs were spectacular. Here’s a video of the beach.
Pata Prieta Beach: Pata Prieta, not far from Chiva, offered some gorgeous snorkeling along the rocky east side of its cove. Among the vast quantity of sea life we encountered while swimming in shallow water above the coral reef, I saw a small barracuda and even an octopus! He was hiding in plain sight on the seafloor, camouflaged among the rocks and plants. I only recognized him because I had seen the documentary My Octopus Teacher on Netflix. He crept along as I watched him, before finally deciding to launch himself and swim away, shedding his rocky camouflage and revealing himself to be a translucent orange swimmer.
Our private spot in the mangroves 
Our view
Bioluminescent Bay Tour
The highlight of our trip was the touristy experience everyone needs to have, a Bioluminescent Bay Tour. We went out in transparent double kayaks the first night to see the brightest bioluminescent bay in the world with Taino Aqua Adventures. Our guide, Kevin, took us out into Mosquito Bay in the darkness of a waxing moon under mercifully cloudy skies, and the water shimmered green, blue, or white (depending on your vision) with every stroke of the paddle. The water also sparkled underneath the boat as we moved through the inky water. It was magical!
But actually, it was science. Kevin explained that the luminescence in the bay is caused by a microorganism, the dinoflagellate Pyrodinium Bahamense, which glows whenever the water is disturbed, leaving a trail of neon blue.
Sorry, because of the darkness and the fact that our hands were busy paddling, we were not able to get any photos or video. You can see what it looks like on Taino Aqua Adventures’ website.
We have so much more to share, but I think you are just going to need to visit Vieques yourself!
Here are some resources to get you started:
