Kayaking Around Monkey Island, Puerto Rico

Cayo Santiago “Monkey Island” Humacao, Puerto Rico kayaking tour of the island and Rhesus monkey watching

On the East Coast of Humacao, Puerto Rico, close to Palmas del Mar, is an adorably named place of Monkey Island.  The island is easily visible from the shore of Punta Santiago.  Cayo Santiago, also known as Monkey Island, is shaped like a lower case r, and is a research colony/habitat to Rhesus Monkeys.

Monkey Island Cayo Santiago Puerto Rico

And you can kayak out to the island for up close viewing of the Monkeys!

To clear up some possible confusion, Mona Island (Isla de Mona) is located 41 miles (66 km) west of the main island of Puerto Rico, it literally means Monkey Island and is located in the deep, rough waters in the Mona Passage. Cayo Santiago is located 0.6 miles (1 km) off the east coast near Punta Santiago in Humacao, Puerto Rico. Cayo Santiago is known as “Monkey Island” due to an active Rhesus monkey colony and facilities devoted to research that can be easily viewed by kayak and small watercrafts from Punta Santiago.

A couple friends of mine booked a kayaking trip to Monkey Island and invited me along.  The low price and spending time with friends , plus the possibility of MONKEYS, made it an easy decision!


Everyone on our tour had previous experience on Sea Kayaks, so we had a quick refresher course plus a few tandem paddling tips, then into our kayaks.  Camera and personal items were double bagged in dry bags provided by Barefoot Travelers.

Monkey Island Water

The water was a bit choppy, so we had a great workout paddling out the half mile to the island.  Only a few minutes into the journey, our tour guide Keishya was already pointing out movement in the trees, then monkey shadows as we approached the island.


We paddled the kayaks out to just short of the island, as only researchers are allowed on the island.  The sandy bottom is as shallow as 3 feet in certain areas.  There are a few spots around the island to drop anchor and walk around the clear, shallow water.  Boats are too big to get this close, so kayaks are the BEST way to see the island and the monkeys that live there!

Monkey Island 2016 Beach Monkeys

As we quietly stood in the water near our kayaks, there was a parade of monkeys crossing the sand bridge and surrounding beach!  Mommy monkeys with newborn baby monkeys pressed together, young monkeys scampering about, pregnant monkeys, and even a couple rare blonde monkeys came out to watch us watch them!

Most of the monkeys are the size of large cats.

They roam around the island freely.  A few monkeys watched us, watching them.

Monkeys can easily be spotted in the trees, on the beach, and just hanging around.

How Many Monkeys Can You See?
How Many Monkeys Can You See?

Our knowledgeable guide told us the history of the island, monkey stories, and answered all of our monkey questions.

Out of the Kayaks and preparing to snorkel out to the ship wreck behind the kayaks.
Out of the Kayaks and preparing to snorkel out to the ship wreck behind the kayaks.


There is an old shipwreck near the island in shallow water (approx 10-12 feet deep).  Snorkel and mask were retrieved from another dry bag and within minutes we were swimming with a variety of fish around the shipwreck.  We saw many fish, including puffer fish, bright orange starfish and an octopus!  Our group swam around pointing out various fish and features of the ship wreck.

Our tour guide tailored our trip based on the activities of the monkeys and our preferences.  We had plenty of time to watch the monkeys.  We snorkeled all around the calm waters West of the island.  We even opted for an extra rest stop before the final paddling back to shore.

Rest break after paddling around Monkey Island (Cayo Santiago) Puerto Rico
Rest break after paddling around Monkey Island (Cayo Santiago) Puerto Rico

Drone Overview

Drone video of Cayo Santiago, also known as Monkey Island, in Humacao, Puerto Rico. Overhead view of the research facilities and a glimpse of the Rhesus Monkeys that live on the island as of December 2022. Starting from Punta Santiago beach flying over the water to Cayo Santiago and back to shore.

Monkey Island Kayaking TourPuerto Rico

What to Wear

  • Sunblock!!
  • Hat
  • Swim suit
  • Bonus points for UV protection shirt and/or leggings/pants for the fair skinned folks trying to avoid a sunburn!

Our trip was a snorkeling and kayaking tour around the island.  So I wore a protective water shirt and shorts over my bikini, and water shoes.

Next time, I will wear a fitted hat or visor to keep the sun off of my face, and perhaps long pants to prevent a weird tan line from the shorts.  Even though I wore a ton of sun block, there was quite the tan line around my sunglasses and shorts.  Also, for the snorkeling part, I (stupidly) took off my shirt without applying more sunblock and got a sunburn on my back.

I was especially impressed with the quality of the provided gear.  Quality masks and snorkel (with the fancy float mechanism that closes to prevent water from entering when submerged), plus water shoes (if you do not have your own), life jackets of course, good paddles, and nice two-person sea kayaks.  All of the equipment is well cared for.  I felt safe and comfortable both for the equipment and Barefoot Travelers as our guide.

Assume everything will get wet!  Even stuff in dry bags gets a little moist from the humidity and your hands, if you open the bag at any point in the trip.  Leave dry towel and nonessential items in the car.  I squeezed out my shirt and shorts and was dry within a few minutes of exiting the kayaks anyway.

Since my friends had originally booked the tour, I just showed up.  To my pleasant surprise, I had met the tour guide owner/operator Keishya at a local event a few weeks earlier (Puerto Rico is a small island).  And the end of our tour, we met her husband and partner, Bob.

Who we Booked with:  Barefoot Travelers (FB page) and website for booking a tour (reservations required for the twice daily tours).  I know why Trip Advisor have given them well-deserved Certificate of Excellence Awards.  Oh, and they have a guest house accommodations to rent.


A photo posted by Jen Morrow (@jentheredonethat) on

Gratuity:  Monetary tips are common practice for tours.  There is no room for a tip jar on the kayaks, so don’t be shy to show your appreciation with cash in hand when returning your rental gear.

Kayaking around Monkey Island (Cayo Santiago) Puerto Rico

No special consideration was given to me other than being a paying guest.  I had previously met the owner, and while I received a fantastic workout, I highly suspect that Barefoot Travelers treat all of their guests this well!

Stay nearby in the charming beachfront village of Punta Santiago, Puerto Rico and enjoy the Humacao Nature Reserve for more kayaking, hiking, and biking along the nature trails.

71 thoughts on “Kayaking Around Monkey Island, Puerto Rico”

  1. Looks like you had a great time in Puerto Rico Island. I have recently been there. Snorkeling looks really amazing but I missed to do that. I must have read your post before. Thanks for sharing. Anyone who is visiting there, please don’t miss Snorkeling. I am regretting now.

    1. Yes, Puerto Rico has some fantastic snorkeling! So many great snorkeling spots await you, when you come back!

    1. For a half day excursion, it was under $100. I think it was $80 per person, but I do not remember exactly. After Hurricane Maria the tour is modified and I do not know the updated pricing.

    1. I am happy that you enjoyed this post! Be sure to check out some of my other posts on Puerto Rico for more inspiration and travel ideas.

  2. Wow you are so lucky to have this beautiful place on your doorstep. I love kayaking. You get to see such interesting places that aren’t accessible on land. Monkey Island would be my dream trip. I think I would be a little nervous getting close to them in case they jumped on my kayak but they look so cute!

  3. I am so amazed! Puerto Rico has so much to offer in terms of activities. I love kayaking and paddling, but I really dislike interacting with monkeys. They were the worst in Jaipur.

    1. I have heard about the out of control monkeys in tourist traps. I am so happy that the Monkeys on Cayo Santiago are in a natural habitat and well cared for. They are well behaved and interesting to watch. Again, there is no direct interaction of the monkeys while kayaking around the island.

  4. I love sea kayaking and the monkeys are an added bonus. I am not sure my husband would agree though as the last time we kayaked last month in the Philippines, he only capsized his kayak and got stuck on some coral. I had to tow his kayak to the beach where the hotel staff emptied the water and then take it back to rescue him. I had a lot of laughs at his expense but for some reason he did not see the funny side!

    1. HAHA, yes I see how that might not be funny for him. Fortunately, most of the water around Monkey Island is shallow, with many spots only 3-4 feet deep so a capsized kayak is no big deal.

  5. I love monkeys and so would be really tempted to check this place out if I’m ever in Puerto Rico. Do you know any more about what the purpose of the research island is and what kind of research they are doing there? Have always wanted to try sea kayaking too so could possibly kill two bird with one stone. Snorkeling the ship wreck must have been fab as well.

    1. The colony was established after removing the monkeys from medical research facilities. Now it is an observation habitat only. No experiments on these monkeys, just well fed and looked after.

  6. Wow I think you have found yourself a little Gem. i have not heard of this before. I plan on doing Central America some time soon and I will def. check this our when it is closer to this day. Thank you for this review.

  7. The whole experience seems to be a lot of fun. I would be really interested to getting close to the ship wreck. Sounds quite intriguing.

  8. I love kayaking excursions and this one looks really fun. Were you able to go onto the island and explore? I’d love to snorkel around the shipwreck. Very cool!

    1. No feeding the monkeys, and you are not allowed on Monkey Island. Visitors can look from the water off of the island only.

  9. Ohh this looks fun! I’ve always wanted to go to Puerto Rico and now I have another reason why I should! Kayaking is always one activity I enjoy and it’s cool that the company provided waterproof bags for your gear!

  10. Those look like pretty calm waters but I would still be terrified of all the wild sea creatures that are out there. However, as you said, for MONKEYS, it would be worth it!

    1. The wild sea creates in the waters around Monkey Island consist mostly of starfish and colorful fish. The waters around the shipwreck are so clear, you can see all around you.

  11. OMG! The monkeys!! This is seriously my cuteness overload for today. Never been kayaking, but I’d definitely paddle my way there just to see these cuties πŸ˜€ hopefully they don’t throw stuff at me to stop the annoying screeching coming from me πŸ˜€

    1. No, these Monkeys did not throw anything. Many were playing on the beach, or just hanging out in trees. And since people are not allowed on the island with the monkeys, there is really no danger at all.

  12. What a fantastic experience! I would be afraid to go near the island, as I’m not really comfortable around monkeys, especially when they are so big. But from the water I wouldn’t have a problem. I love snorkeling too, I wish I can do it more often in my trips.

  13. What a great post! Puerto Rico is on my bucket list and this article about Monkey Island was truly motivating to head there sooner than later. I also want to take up kayaking so I will refer back to your piece! Thank you for sharing!

  14. Oh my this must have been so exciting. I would love to see them from a distance. The last time I was near the vicinity of a monkey, the little devil wasnt very kind to me. πŸ˜›

  15. Puerto Rico is a magnificent country in terms of nature and wildlife, I am happily surprised to see how many different options one can get to do different activities on the island. Water sports are always fun and engaging, and it’s much better when you feel safe because you are given the right gear. Awesome experience.

  16. Kayaking, monkey spotting and snorkeling! What a fun day out you guys got to do and see a lot. I think it’s so special that the entire island is inhabited by monkeys. I also thought it was funny that they were watching you watch them.

    1. Monkeys are not native to Puerto Rico, they were brought onto the island habitat after being removing from testing/research facilities.

  17. I would love to see those monkeys! I’ve only ever seen wild monkeys in Brazil but not a whole island of them. Puerto Rico really is an amazing island. And great that your guide gave enough time to see them.

  18. Tons of monkeys!! I recently had my glasses stolen by a monkey in Indonesia! lol πŸ™ My new ones will be in Monday though haha! I’m not sure I can look at them the same πŸ˜› Looks like you had fun!

  19. Monkey island and snorkeling sound like so much fun. The tips you gave are very handy. I wouldn’t have thought of wearing UV clothing or water shoes. And a good thing that they provided water proof bags for your phones and personal items πŸ™‚

  20. I’m thoroughly impressed! I tried sea kayaking once and my arms were BURNING and I know I didn’t go a half mile! I love that the #1 thing you recommend wearing is sunblock. Haha! Looks like you had a blast and I would love to see photos of the snorkeling! Cheers!

  21. Puerto Rico is such a beautiful Island. I never knew you could do this and this type of adventure is right up my alley. Next time I visit I will be sure to look it up. Thanks for sharing. Happy Roving!!!

  22. They are soo cute! And seems like you have a great time. I hope there is someone who is keeping on eye for these cute monkeys, if there is – kudos for them!

    1. Researchers visit the island regularly for monkey health check, census, and feeding. These cuties get plenty of attention!

  23. That sounds like such a fun kayaking experience! I have to be careful kayaking in choppy waters though, sometimes I get a bit motion sickness kayaking. I would love to check this out when we go to Puerto Rico!

    1. Some monkeys enjoyed watching us, but most of them just went about their day like we were not there. Since the island is a protected habitat, people (non-researchers) are not allowed on the island, and must keep a little distance from the monkeys anyway. We were never close enough to touch, or for the monkeys to jump out to us. Everyone (tourists and monkeys) are perfectly safe.

  24. This was a super helpful blog post! I’ve always wanted to go to Puerto Rico, and kayaking around there to watch wildlife seems incredible. Thanks for sharing!

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