Priced per person for the whole day, and it lives or dies by the moon and weather. 4.61 from 56 reviews at €818 per person.
In our comparison: #53 of 70 in Day Trips, by rating weighted by review volume (see the comparison).
3 options from the operator, described in its own words. Prices are the operator's from-prices per adult for a party of two. Click an option to book it on Viator. Guide languages on every option: English, Spanish.
| Option | What the operator says | From, per adult |
|---|---|---|
| Private Sandbar Party & BiobayThe page price | Private: This is a private tour and both your road and water vehicles are reserved to be used only by your party. Sandbar Party: Enjoy Puerto Rico's favorite sandbar party and then swim in the bioluminicent bay. Drinks: Softdrinks, beer and rum included. | €804 for 2+ people |
| Snorkeling, Sunset & Biobay | Bioluminescent Swim Boat tour: Private Bioluminescent Boat tour with 1.5hrs to swim in the gowing waters of La Parguera's Papayo Bay. Duration: 8 hours SJ-La Parguera-SJ: Duration includes 2hrs transportation to La Pargura and 2 more to San Juan. Rio Grande and Dorado pickups must be arranged. Tour times: This tour starts at 9pam from SJ and boal sails at 11:30am | €804 for 2+ people |
| Rainforest waterfalls addition | State Rainforest Waterfalls: This package offers the opportunity of visiting arguably the most beautiful and private waterfall in Puerto Rico. Duration: 12 hours Water and soft drinks Central Mountain Range: You will cross the central mountain range and see what almost no visitor gets to see, our central Sierra. Private Transportation : Mercedes SUV or Minivan. Or 14 seaters high roof custom Ford Transit. Aditional Info: This tour starts at 10am adding 4 hrs to do the Rainforest waterfalls and then the Snorkeling, Sunset & Biobay Swim. | €1027 for 2+ people |
Child prices by age band are shown at checkout. Option texts and prices come from the operator's listing; prices checked on Viator on 19 September 2026.
91% of ratings with a star breakdown are 4★ or 5★: 51 of 56
Star breakdown of all 56 ratings
Reviewers praise the snorkeling and bioluminescent swim, but some report that no guide or captain showed up.
Written by Guidekin from the 55 most recent English reviews on Viator & Tripadvisor (8 June 2021 to 31 July 2026). Refreshed as new reviews arrive; last checked 4 October 2026.
Reviews are shown as the platforms publish them and removed when they disappear there.
Ratings collected from Guidekin, Viator & Tripadvisor.
At the dock, a certified USCG captain awaits with your pontoon boat — chosen for its comfort, stability, and enhanced bioluminescence visibility. After a brief safety orientation, you’ll cruise toward a paradisiacal cay nestled in crystal-clear, waist-deep waters, ideal for gentle, stress-free snorkeling and floating. Families find joy in the playful ease of it all. Couples share a golden horizon in quiet intimacy and wonder. Seniors float effortlessly, without needing to exert themselves, with beauty and ease. At the Cay, Carlos Alexis will show you around the surrounding channels, where the gentle current behaves like a lazy river. He’ll even take you snorkeling to the back of the cay using our hypoallergenic silicone gear while the sun still shines through the mangroves — always making sure you stay safe and secure. As golden light shimmers on the water’s surface, the sun dips below the horizon as Mother Earth’s prelude to her most magical act and the night’s main attraction.
3h · Admission includedAs night falls, your boat drifts into Papayo Cove, where Carlos Alexis begins with a historical and scientific briefing about the bay, and the real stars of the show: the dinoflagellates. Then, he leads the way into the water that appears still and dark — until he touches it. Then… it glows! He will teach you how to elicit the glow so the bioluminescence reaches its full peak. Once you’ve mastered the glow, he gently guides you under the boat’s deck, where the glow intensifies, revealing the full magic of this sacred bay. Once you feel confident and safe, Carlos returns aboard the pontoon and transforms into your filmmaker and director, using the ultimate tool to capture this elusive phenomenon: Sony’s advanced ZV-E1 AI camera system. He documents your interaction with the dinoflagellates — a sacred, cinematic encounter captured in a way only he can. Whether you see it as a scientific marvel, nature’s magic, or a divine encounter, you’ll feel changed — reborn by water and wonder.
1h · Admission includedBack on shore, your dinner awaits — warm, fresh, and locally inspired. You’ll change into dry clothes, share laughter after your surreal and magical experience, and savor the flavors of Puerto Rico, thoughtfully served at a table reserved just for you, giving you a chance to digest the night’s unforgettable magic. After dinning, the return drive is peaceful. Children drift to sleep with smiles, still glowing from the bay. Couples sit hand-in-hand in silence, still glowing inside. And seniors rest deeply, their hearts full and content knowing they’ve lived something few ever will. As you arrive back at your hotel, your footage is safely backed up. And in just a few days, you’ll receive a professionally edited cinematic keepsake of your bioluminescent swim — one of the rarest and most beautiful moments a traveler can capture anywhere in the world.
1hMystic Waters Under the Sun & Stars is the most intimate and cinematic way to interact with nature, an experience unlike any other in Puerto Rico. More than a tour, this is the first and only private, fully guided, snorkeling, sunset and bioluminescent swim experience in the Puerto Rico. Safe even for non-swimmers, toddlers, and seniors, it’s a rare adventure where comfort, storytelling, and nature’s magic unite. Every step of the way, your expert guide and host — Carlos Alexis, Puerto Rico’s most respected private historian and bioluminescence filmmaker, ensures you’re not just witnessing nature’s wonders, but immersed in them: safely, comfortably, and meaningfully.
Includes Snorkeling gear and High-End Professional Video Capture of Your Swim Using National Geographic-Level Gear when conditions allows it.
As seen in ABC Caribbean, Ritz Experiences, and St. Regis Experiences
The Same Experience Booked by Professional Athletes, Hollywood Stars, and Corporate Executives
The operator's own notes, grouped by topic. Nothing here is added by Guidekin.
For a full refund, cancel at least 24 hours before the scheduled departure time.
| Tour | Price | Duration | Rating | Group |
|---|---|---|---|---|
| This tour · #53 of 70 | €818 | 9h | 4.61 (56) | private |
| Arenales River Caving, Waterfall &Tropical Forest Secret Spring | €114 | 7h | 4.98 (1776) | shared |
| El Yunque Rainforest and Luquillo Kiosk Day Trip | €77 | 6h | 5.0 (608) | shared |
| Self-Drive Mini Boat Snorkeling Tour to Icacos Island | €227 per group | 3h 30m | 4.96 (1969) | shared |
Ranked #53 of 70 in Day Trips by Guidekin score (rating weighted by review volume). Prices here run from €23 to €818, median €90; typical length 5h. 2 of 70 are private. Figures are live from the tour cards; the rubric is our handpicked set, not the whole market. Compare all 70 Day Trips