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Cueva Ventana and Arecibo Observatory from San Juan

Select Date and Travellers
US$ 135.00
2 travellers
    What to Expect
    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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    Important Information
    Departure Point
    Traveler pickup is offered
    Tour commences with pick-up from select San Juan hotels. Your closest pickup point will be advised upon reconfirmation. Pickup is not available from the cruise ship port
    Departure Time
    8:00 AM
    Return Details
    Tour returns at approximately 4:30pm
    • Air-conditioned vehicle
    • Professional guide
    • Local taxes
    • Helmet and head lights
    • Entry/Admission - Cueva Ventana
    • Food and drinks
    • Gratuities
    • Entrance fee for Arecibo Observatory (USD $12)
    • Entry/Admission - Arecibo Observatory
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    Additional Info
    • Confirmation will be received at time of booking
    • Pick up is not provided from San Juan Cruiseship (port/dock). The closest hotel is the Sheraton.
    • Pickup is not provided from Wyndham El Conqistador Resort, Golden Door Spa Gran Melia, St. Regis, Sheraton Old San Juan Puerto Rico Hotel and Casino or Riomar resorts because the tour operates out of San Juan.
    • Person have to be fit, without any back/leg or knee problems,able to do a 20 minute hike and can not be afraid of darkness.
    • Minimum numbers apply. There is a possibility of cancellation after confirmation if there is not enough passengers to meet requirements. In the event of this occurring, you will be offered an alternative or full refund
    • This experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund
    • This experience requires a minimum number of travelers. If it’s canceled because the minimum isn’t met, you’ll be offered a different date/experience or a full refund
    Cancellation Policy
    For a full refund, cancel at least 24 hours in advance of the start date of the experience.
    Traveller rating
    • 3
    • 0
    • 1
    • 0
    • 3
    Traveller type
    Time of year
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    • English
    2 friends and I were cruising from the port and had a spare day in PR. I wanted to check out Arecibo and found this tour. We were told we would be picked up at 8am and at 730am I got an e-mail saying the trip was canceled???? The left us scrambling to get a car and attempt to go
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    Response from Tina B, Manager at Cueva Ventana and Arecibo Observatory from San Juan
    Responded 15 Sep 2019
    I am sorry that you had this bad experience. But this was not with our Company. If we have to cancel, we do that the day prior by 5 pm , not later then 7 pm. Unless you booked this through a third Party and they did not inform you on time.
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    I travelled to San Juan in May and booked this trip one week before. This is the only weekend for me to stay in PR so I wanna make full use of my time. This agency sent me message one day before the planned date said we will pick you up at 8 am, however on the night before the
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    Response from Tina B, Manager at Cueva Ventana and Arecibo Observatory from San Juan
    Responded 11 Jun 2019
    Thank you for taking the time to review.I am very sorry that we disappointed you and had to cancel the Tour due to not having a minimum. But when you make a reservation online it is clearly stated that we do need a minimum to cover cost. If you contact me , I will check to see why you have not been refunded. We , Castillo Tours always refund if our trips are cancelled by us due to weather or any other reason. But if you booked through a 3 rd Party , then their cancellation/refund policy applies. You can contact me at reservations@castillotours.com or call me at 787-791-6195 kind regards Tina Borrero, Operation Manager. You can reach me Monday - Friday 9 am to 3pm.
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    We had an absolutely terrific day. Our guide, Jacob, is a stellar guide and we feel so lucky that he took us around. Jacob is highly knowledgeable with warmth, wit, intelligence and seemingly endless curiosity about almost everything. My wife and I turned out to be the only two
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    Response from Tina8020, Manager at Cueva Ventana and Arecibo Observatory from San Juan
    Responded 23 Dec 2018
    Thank you for the fabulous review, we very much appreciate your kind words but even better that you had a fabulous experience
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    We booked this trip about 6 weeks in advance of our trip to Puerto Rico and were really excited to see the caves and the observatory. At 5:00pm the day before the trip, I received a text that the trip had been canceled due to too few guests. I called Castillo Watersports, and
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    Response from Tina8020, Manager at Cueva Ventana and Arecibo Observatory from San Juan
    Responded 29 Nov 2018
    I take the opportunity to apologize for this bad experience you had with our service. We are always trying to accommodate all reservations, but do need a minimum to cover cost. Our Agent was able to get another Family reserved to have the minimum, but unfortunately the Tour Guide called in sick. We tried to get another Guide last minute to take the trip out, but nobody was available due to the Holiday week. I am very happy to hear that you did get another Guide to take your Family on the Tour. Please forgive us for not handling the situation to your satisfaction.
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    This tour advertises in the title Cueva Ventana, then in the description Rio Camuy... which is it? Definitely call ahead before you book this tour. I attempted to visit Camuy Caves in June 2018, and they were closed.
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    Response from Tina8020, Manager at Cueva Ventana and Arecibo Observatory from San Juan
    Responded 28 Jun 2018
    Thank you for pointing out that the first page of our Web Site says Camuy Caves. That should have been changed. The Camuy Caves are still closed, that's why we offer Cueva Ventana instead.Not sure why you think the description is of the Camuy Caves.The description was changed when we went live and started to offer this a week ago.But we have not done this Tour yet. So I am disappointed that yuu give us a 3 star rating without having been on our Tour.It does show Camuy on the initial page, but as soon as you open it gives you the Window Cave information.
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    Key Details
    • Duration: 8h
    • Mobile Ticket Accepted
    • Instant confirmation
    • Hotel Pickup
    • Languages Offered: English
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