• Tour code: 4170RIO
  • Location: San Juan, Puerto Rico
  • Duration: 9 hours (approx.)

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Get an insider’s look at two of Puerto Rico’s most massive attractions, the Arecibo Observatory and Rio Camuy Caves Park, on this 9-hour day trip from San Juan. Descend inside a million-year-old cavern (one of the three largest underground river systems in the world) on your Camuy cave tour. Then prepare for an out-of-this-world visit to the world’s largest radio telescope at Arecibo, a giant concrete bowl wedged in the hills of Puerto Rico’s northern coast. Your tour also includes a guide and pickup and drop-off at most San Juan hotels.

Highlights

  • Day trip to the Rio Camuy Cave Park and Arecibo Observatory from San Juan
  • Descend into the depths of a million year old cave
  • Enjoy a guided tour of the third largest underground river cavern in the world
  • Visit the world's largest radar/radio telescope
  • Pickup and drop-off from most San Juan hotels

What You Can Expect

Rio Camuy Cave Park and Arecibo Observatory from San Juan

Camuy Caves, Puerto Rico

Discover two of the biggest attractions that Puerto Rico has to offer on this combination Camuy Caves and Arecibo Observatory day trip from San Juan. If you’re hoping to check out Puerto Rico’s natural wonders and more unusual sights, this is the perfect tour to get deep inside (literally) two of the island’s more unexpected landmarks.

Start your day with a pickup between 7am and 8am at your San Juan hotel, continuing on to the incredible Camuy Caves system in the northwest part of the island. Step inside the subterranean world of this underground complex for a safe guided tour of its soaring interiors, strange sinkholes and eons-old stalactites and stalagmites. Close your eyes and listen to the echoes of the thunderous tropical river that still flows through the cave’s many chambers and channels, continuing the slow expansion that started millions of years ago.

Continue on to the Arecibo Observatory, a monster-size concrete bowl that looks as if giant dropped it between the foothills along Puerto Rico’s craggy northern coast. Learn about the scientists from all over the world that journey to this famous 1000-foot (305m) diameter dish to listen to the sounds of the universe, studying the radio emissions from distant galaxies and quasars. Then head to the observation platform, where you can view this enormous scientific instrument up close, its metallic surface glinting against the earthy green foliage that surrounds its rim.

Finish your day with a return trip to San Juan, arriving back at your hotel around 4:30pm.

Please note that lunch and entrance fees to the attractions will be at your own expense.

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