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Puerto Rico: Bio Bay Swim and Sunset Charter or Late night tour

4.8 · 362 ratings on Guidekin, Viator & Tripadvisor 96% of star-rated reviews are 4★ or 5★ Puerto Rico Operated by Mareaito Charters Free cancellation · up to 24 hours before
Duration
2h
Group
Shared tour
Guide languages
English, Spanish
Start & pickup
17:30, 18:00, 18:30, 20:30, 21:00, 22:30 · No hotel pickup: everyone meets at the start point
Booking
Instant confirmation · mobile ticket
Guidekin's take

A boat from La Parguera to the sandbars at sunset and then into the one bioluminescent bay in Puerto Rico you are allowed to swim in, floaties provided.

The listing says little beyond that: towels and snorkel gear are not included and there is no transport from San Juan. 4.85 from 362 reviews at €59 per person.

Best for: Boat from La Parguera for a bio bay swim at €59 per person for 2h; own transport, bring towels. 4.85 from 362 reviews. Bioluminescent Bay Tours comparison

Trade-off: Own transport; bring towels and snorkel gear.

In our comparison: #31 of 70 in Day Trips, by rating weighted by review volume (see the comparison).

Editorial check: September 19, 2026How we choose tours →Commissions never affect our verdicts.

Price and inclusions

One price for every traveller: €59 per adult.

Included and not included

  • Floaties
  • Towels , snorkeling gear

Children from €50 (ages 1 to 12). Option texts and prices come from the operator's listing; prices checked on Viator on 3 October 2026.

Reviews

4.8
362 ratings
Tripadvisor 214 · Viator 148

96% of ratings with a star breakdown are 4★ or 5★: 349 of 362

Star breakdown of all 362 ratings

5 stars
329 · 91%
4 stars
20 · 6%
3 stars
6 · 2%
2 stars
4 · 1%
1 star
3 · 1%

What reviewers say

Reviewers praise the bay swim and sunset stop, but some report faint or absent bioluminescence.

Praised

  • Swimming among sparks of bioluminescence is a recurring highlight
  • Reviewers enjoy the relaxing sandbar swim on sunset departures
  • Many praise the crew's friendliness and explanations of the bioluminescence
  • Smaller boat groups help guests avoid feeling crowded

Complaints

  • Some find the glow faint or absent, while others describe bright sparkles in the water
  • Some report crew on phones or resting during swims, while others praise attentive care
  • Some report dismissive responses to life jacket requests, while others receive flotation aids
  • Some struggle to find the meeting point, while others describe it as easy to locate

Written by Guidekin from the 100 most recent English reviews on Viator & Tripadvisor (18 January 2026 to 3 October 2026). Refreshed as new reviews arrive; last checked 4 October 2026.

Latest reviews

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Ratings collected from Guidekin, Viator & Tripadvisor.

Meeting point and route

Meeting point

Where
In front of La Casita Sea Food. Look for Mareaito Charters on Google maps. If Downtown is closed go around through calle 1 · Open in Google Maps
Departure
17:30, 18:00, 18:30, 20:30, 21:00, 22:30 daily; scheduled year-round (operator schedule, seats confirmed at checkout)
Return
This activity ends back at the meeting point
Pickup
No hotel pickup: everyone meets at the start point
Operator
Mareaito Charters; booking and payment are completed on Viator

About this tour, from the operator

You will visit two very unique places the sandbars of La Parguera and one of the five Biobays in the world and the only one you can swim in. Very nice boats and skillful Captain.

Walking, children and accessibility

The operator's own notes, grouped by topic. Nothing here is added by Guidekin.

Walking and health

  • Not recommended for travelers with poor cardiovascular health
  • Travelers should have at least a moderate level of physical fitness

Accessibility

  • Service animals allowed

Good to know

  • Children from €50 ages 1 to 12

Cancellation policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

  • 1+ days: Full refund
  • 0-1 days: No refund

Compared with other Day Trips

TourPriceDurationRatingGroup
This tour · #31 of 70€592h4.85 (362)shared
Arenales River Caving, Waterfall &Tropical Forest Secret Spring€1147h4.98 (1776)shared
El Yunque Rainforest and Luquillo Kiosk Day Trip€776h5.0 (608)shared
Self-Drive Mini Boat Snorkeling Tour to Icacos Island€227 per group3h 30m4.96 (1969)shared

Ranked #31 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

From €59 per adult