San Juan: Charco Azul Caves & Waterfall Swimming Adventure

Options for this experience

2 options

Guide in English or Spanish08:30

Guide in English or Spanish09:00 and 12:00

You pick the guide language when booking. Options with the same name differ in details you'll see when you pick a date.

You see the exact price of each option when you check availability.See dates & prices

Underground Rivers & a Turquoise Pool in Puerto Rico's Karst Country

You swim through ancient caves with underground rivers and view Taíno petroglyphs, then move to Charco Azul's turquoise pool for swimming and optional cliff jumps. A guide handles the driving and route, you bring closed-toe shoes and a swimsuit, and the tour includes water, snacks, life vests, and transport from San Juan. The whole experience takes five to six hours.

Step-by-step itinerary

Explore caves and swim at Charco Azul

• Explore ancient Arenales Caves
• View Taíno petroglyphs
• Swim through underground rivers
• Relax at Charco Azul natural pool
• Optional cliff jumps

The Experience

Yeah, so the caves aren't some tourist trap. They're actually old, shaped by water over thousands of years, and you're swimming through the underground rivers the whole time. The guide points out Taíno petroglyphs carved into the rock walls, and you realize you're moving through something that matters, not just a pretty hole in the ground. The Arenales Caves are the first part, and it's tight enough that you have to pay attention to where you're putting your hands, but not so tight that it feels claustrophobic. Water's cool, the air smells like stone and earth, and there's this moment where your eyes adjust and you see the whole passage lit up by the guide's lamp.

After the caves, you head to Charco Azul, and this is where people usually stop talking about the technical stuff and just stare. It's a natural pool, turquoise-colored, surrounded by rainforest cliffs, and the water's deep enough that you can actually swim instead of wade. Some people just float there for twenty minutes. Others do the optional cliff jumps if they're feeling it: the guide sets that up, so it's not a "figure it out yourself" situation. You get time to sit, dry off, eat the snacks that come with the tour, and just be in that space. The air is different up there, thinner somehow, and quieter than you'd expect so close to San Juan.

The whole day is maybe five to six hours from pickup to drop-off, and you're in an air-conditioned vehicle between the two spots, so you're not hiking for hours in the heat. The guide drives, talks you through what you're seeing, and handles the logistics. You show up with closed-toe shoes (non-negotiable for the caves), a swimsuit under your clothes, and the willingness to get wet. Life vests are included, bottled water is there, and the snacks aren't an afterthought. If you're marking something (a birthday, an anniversary, a "we made it through the year" moment), they have a Celebration Edition that's private, which changes the whole vibe of the day.

What’s included

Your day includes an air-conditioned vehicle with pickup and drop-off in San Juan, a guide who leads you through the caves and to Charco Azul, bottled water, snacks, and a life vest. Entry to both sites is covered, and the guide handles all the logistics so you just show up ready to go.

Days and timesDaily · 3 departure times, from 08:30 to 12:00

Ages5 to 65 years · Under 5 — No ticket type: can't be added to a booking

Meeting point and pickupNo pickup · ends where it startsMeeting point, per the operator: “Parking in front of the beach”

Cancellation and refundsFree cancellation up to 24h before the start. After that, no refund.It may be canceled due to bad weather. If that happens, you're offered another date or a refund.

Prices and times updated yesterday

Good to know

Moderate physical levelNot for pregnant travelersNot for heart conditionsNot for back problems

Operated by Exploradise

Is this one for you?Pick this if you want to see the caves and the pool without renting a car or figuring out the route yourself: the fixed schedule and included transport mean you're not spending half the day on logistics.

Traveler reviews

4.98★★★★★★★★★★

255 verified traveler reviews

5 ★253

4 ★1

3 ★0

2 ★1

1 ★0

Read all the reviews ›

Top questions

What languages is the guide in?

Live guide in English and Spanish.

What happens if it rains?

It may be canceled due to bad weather. If that happens, you're offered another date or a refund. Free cancellation up to 24h before the start.

What's the water temperature in the caves and at Charco Azul?

The water is cool but not cold. It's spring-fed and stays consistent year-round. Most people find it refreshing rather than shocking.

Do I need to be a strong swimmer?

No. The caves have shallow sections and the guide controls the pace. Charco Azul is deep but you can float or stay in shallower areas. Life vests are provided.

Can I do the cliff jumps if I'm nervous about heights?

The cliff jumps are optional. Many people skip them and just swim in the pool. That's completely normal and the guide doesn't push it.

What should I wear?

Closed-toe shoes for the caves (required for safety), a swimsuit, and clothes you don't mind getting wet. Bring a towel and dry clothes for after.

Is this suitable for kids?

Yes, it's family-friendly. Kids need to be comfortable in water and able to follow safety instructions in the caves. The guide adjusts the pace for families.

How far is this from San Juan?

The caves and Charco Azul are in Puerto Rico's northern karst region. The tour includes pickup and drop-off, so you don't arrange transport separately.

What if I don't want to swim?

You can explore the caves and relax at Charco Azul without swimming. The guide will work with you on what feels right.

Is there food included?

Snacks and bottled water are included. It's not a full meal, so eat before or plan a meal after if you're hungry.