Adventure Collective
Water Activities at Arenales Cave & River Trekking in Puerto Rico - San Juan

Water Activities at Arenales Cave & River Trekking in Puerto Rico

San Juanmoderate

Difficulty

moderate

Duration

4–6 hours

Fitness Level

Moderate fitness required, including the ability to hike on uneven terrain and wade through water.

Overview

Discover the thrilling combo of cave exploration, river trekking, and natural springs in Puerto Rico’s Arenales area. Perfect for adventure seekers who want an authentic taste of island geology and lush rainforest.

San Juan, San Juan

Arenales Cave, River Trekking and Natural Spring Adventure

Price $120| 7 Hours | Ages 10+ | Physicality: 8/10 | Most Popular

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Adventure Photos

Arenales Cave, River Trekking and Natural Spring Adventure photo 1

About This Adventure

Experience the Island like a Local


Rates

  • Adult (Ages 18+): $120
  • Child (Ages 8-17): $120

Up to 13 Passengers

Duration

8 Hours

About

Physicality: 8/10

  • If you are an adventure seeker and want to experience a less touristic area like a local, this is the tour for you.

  • Prepare for a fun and adventurous day where you will be hiking, river trekking, swim under a cave and a breathtaking small canyon, float lazily in the water or jump into it and enjoy a hidden clear water spring; all while enjoying the beautiful scenery and lush nature.

  • End this adventure by hiking a short trail to a hidden small natural spring, a beautiful oasis in the middle of a forest. If you are an adventure seeker and want to visit less touristic areas, but favorite local spots, this will be for sure will an unforgettable experience.

  • This tour requires a certain degree of physical fitness, balance and river trekking skills.

What to Expect/Itinerary

  • We will start early heading Northwest of San Juan for a less than an hour drive
  • Get ready to get wet almost as soon as this adventure starts. Just a few minutes of walking downhill, we will encounter a nice trail taking us to a quiet part of the river where it forms small beautiful greenish blue pools and goes underground and downstream through stunning rock formations. There we will do some river trekking, jump and swim in the river and under a cave and later float lazily downstream. Here not only you will enjoy the natural surroundings, but also see and understand the effects of the Hurricane Maria and floods during the rainy season in the countryside area. This will be our first exploration.
  • We will get back in the trail and continue to the second and most popular area. Here, we will see a small but amazing open cave or more like a small canyon carved by the passing of the river for thousands of years. The rock formations are amazing, unique looking and there you can just walk around the formations and flowstones, jump or just relax floating in the water between the canyon to admire this nature’s gift. This is a photo op for sure.
  • After spending a couple of hours in both areas and working an appetite, we will stop in a no-frills local lunch spot for an authentic lunch.
  • Finally, will head to a Nature Reserve to hike a short trail leading to a hidden small natural spring. Is a beautiful oasis in the middle of a forest where the water is just pristine and completely clear, for sure refreshing and a great way to end your day before heading back to San Juan
  • Having already worked an appetite after hours of exploration, is time for an authentic lunch at the town center before heading back to your hotel.

Departure/Pick-Up

  • Departure/Return Location– at lodging or hotel in Metro Area; Old San Juan, Condado, Isla Verde. (additional transfer fees might apply if pick-up place is outside these areas)
  • Departure Time – 8:00am

Inclusions

  • Water
  • Light Snacks
  • Life Vests
  • Certified and knowledgeable driver/guide
  • Personal and friendly service
  • Pick-up and Drop-off at hotels in the main touristic metro areas (outside metropolitan areas could be arranged for private groups at an additional cost)

Not Included

  • Cost of breakfast and lunch
  • Gratuity

What to Bring

  • Swimsuit already on.
  • Towels (2 per person).
  • Change of dry clothes and shoes.
  • Waterproof camera/cell phone pouches or dry bags are recommended. Anything you bring not protected against water must be left on the van.
  • Comfortable clothing to river trek and swim. Leggings for ladies and swim shorts for gentleman are recommended.
  • Comfortable non slip water shoes to hike in water and over slippery rocks (no hiking boots).
  • Sunscreen, insect repellent, sunglasses.
  • Cash or credit card to buy food or if you wish to offer a gratuity.

Additional Information

  • Confirmation will be received at time of booking.
  • Not wheelchair accessible.
  • Will be operated by a multi-lingual guide (Spanish and English). Tour might be offered bilingual in case needed.
  • Children must be eight years or older to participate and accompanied by an adult.
  • Additional transfer fee from towns outside of San Juan/Metro area will apply (each way).
  • Participants should have a medium to high physical fitness level, must be capable of walking thru inclined, rocky, slippery and uneven surfaces without assistance.
  • We strongly recommend having good breakfast before pick-up at hotel and bring snacks. We will have lunch around four to five hours after pick-up. If you have any special dietary restriction, please notify at time of booking and bring your snacks.
  • Please keep in mind that we will be walking under the sun for an extended time. Please bring anything you need to keep you protected against the sun.
  • Not recommended for participants with heart complaints, back problems, recent injuries or other serious medical conditions.
  • Not recommended for woman past their first trimester or persons with mobility limitations.
  • If you have a service animal you have to notify it prior to booking the experience, since other participants in the tour might have asthma or allergies to pets danders.
  • 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.
  • This tour/activity will have a maximum of 13 travelers.

Adventure Tips

Wear sturdy footwear

Use waterproof hiking shoes with good grip to navigate rocky riverbeds and cave surfaces.

Bring waterproof gear

Pack a waterproof jacket or poncho for unexpected rain and to keep electronics dry.

Start early in the day

Morning light enhances the caves’ interior and helps avoid the heat during river treks.

Stay hydrated and snack often

Carry enough water and energy snacks to sustain you through the active portions of the trip.

Local Insights

Wildlife

  • Puerto Rican bananaquits
  • Common forest lizards

History

The Arenales area has a volcanic origin, with lava flows creating the caves and springs that define this landscape.

Conservation

The guides emphasize Leave No Trace principles, helping preserve the fragile cave and river ecosystems for future visitors.

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Adventure Hotspots in San Juan

Frequently Asked Questions

Recommended Gear

Hiking waterproof shoes

Essential

Protects your feet while hiking through rocky terrain and wet areas.

Lightweight waterproof jacket

Essential

Keeps you dry during surprises like rain or spray from springs.

Waterproof backpack

Essential

Keeps your belongings dry while moving through wet environments.

Quick-drying clothes

Essential

Comfortable and practical for trekking and water activities.