La Parguera Bio Bay Boat Ride and Swimming w/ San Juan Transport
3.9(700)From $54.99
Bio baySwimming
Round-trip transport from San Juan; the bay itself is at La Parguera, Lajas, on the southwest coast.
The Southwest
Cabo Rojo and La Parguera
Limestone cliffs, salt flats, and the one bioluminescent bay you're actually allowed to swim in.
Cabo Rojo and La Parguera sit a short drive apart on the southwest coast and function, in practice, as one connected day trip or weekend rather than two separate stops. Cabo Rojo is known for its beaches, the Los Morrillos lighthouse, and the pink-tinted Cabo Rojo Salt Flats; La Parguera, in neighboring Lajas, is home to the third of Puerto Rico's three bioluminescent bays.
La Parguera's bay is the exception among the three: it's the one where swimming is generally allowed on non-full-moon nights, unlike Fajardo's Laguna Grande or Vieques' Mosquito Bay, where swimming isn't part of the standard tour. That makes it a genuinely different bio bay experience, not just a lower-key version of the other two.
Playa Sucia (La Playuela), at the base of the Los Morrillos lighthouse, is one of the most photographed sunset spots on the island, a limestone-cliff beach reached by a dirt road past the lighthouse and undeveloped by design.
Live Viator inventory
Most booked in Cabo Rojo and La Parguera
Ranked by review volume and booking activity, not star rating alone.
Puerto Rico: Bio Bay Swim and Sunset Charter or Late night tour
4.9(348)From $65
Bio baySunset
Departs from San Juan; the charter runs at La Parguera's bio bay.
Water Bike Tour to La Parguera Cays
4.9(113)From $85
Water bikeCays
Departs from La Parguera.
Bioluminescent Bay Water Bike Tour in La Parguera
4.8(97)From $79
Bio bayWater bike
Departs from La Parguera.
La Parguera Boat Tour
4.8(88)From $80
Boat
Departs from La Parguera.
Highest rated
Best rated in Cabo Rojo and La Parguera
A smaller review count, but the rating holds up.
Full Day Vamos Pa la Isla Southwest Experience
4.8(20)From $300
Southwest tour
Departs from San Juan; the tour covers Cabo Rojo and the southwest coast.
Why base here
Why go here
- La Parguera's bio bay is the only one of Puerto Rico's three where swimming is generally allowed
- Playa Sucia (La Playuela) and the Los Morrillos lighthouse, a dramatic, undeveloped stretch of coast
- The Cabo Rojo Salt Flats, a distinctive pink-tinted landscape and a migratory bird draw in winter
- A connected day trip or weekend rather than two separate destinations
CouplesNature and wildlifeSunset chasers
No booking needed
Go see it yourself
Free anchors worth building a morning or afternoon around.
Playa Sucia (La Playuela)
A tombolo beach below the Los Morrillos lighthouse, undeveloped and best for sunset.
Read moreCabo Rojo Salt Flats
Pink-tinted evaporation pools near the lighthouse, a migratory bird draw in winter.
Los Morrillos Lighthouse
Sits atop the cliffs above Playa Sucia, the anchor point for the whole southwestern tip.
Before you go
The practical stuff
Do you need a car
Yes. Cabo Rojo and La Parguera are on the southwest coast, away from San Juan's tour-pickup network, and getting between the lighthouse, the salt flats, and La Parguera's waterfront works best with your own vehicle.
Drive time from San Juan
Roughly two to two and a half hours, similar to Ponce; many visitors combine the two on a south-and-southwest coast loop.
Bio bay swimming
La Parguera is the exception among Puerto Rico's three bio bays: swimming is generally allowed on non-full-moon nights. Confirm with your specific tour operator, since not every operator or every night allows it.
Cabo Rojo and La Parguera questions, answered straight
Can you swim in the La Parguera bio bay?
Yes, generally, on non-full-moon nights, which makes La Parguera the exception among Puerto Rico's three bioluminescent bays; swimming isn't part of the standard tour at Fajardo's Laguna Grande or Vieques' Mosquito Bay.
What's at Cabo Rojo?
Playa Sucia (La Playuela) and the Los Morrillos lighthouse on the cliffs above it, plus the pink-tinted Cabo Rojo Salt Flats, a migratory bird spot especially in winter.
Are La Parguera and Cabo Rojo close together?
Yes, a short drive apart, close enough that most visitors treat them as one combined day trip or weekend rather than two separate stops.
Is La Parguera's bio bay as good as Vieques' Mosquito Bay?
They're different experiences rather than a straight upgrade or downgrade. Mosquito Bay holds the Guinness World Record for brightest bio bay; La Parguera is the one where swimming is generally allowed, which is its own distinct draw.
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