How old do I need to be to drive the UTV?

Drivers must be 21 years or older and carry a valid driver’s license.

How many passengers can ride?

No more than two passengers at a time; Puerto Rican law requires each passenger to be at least 10 years old.

What are the rental and return hours?

UTV rentals can only be returned during operating hours (9:00 AM – 4:00 PM); 24-hour rentals must be returned exactly at the 24-hour mark.

Is a deposit required?

Yes—a $500 security deposit (Visa or MasterCard) is held and refunded after the UTV passes inspection on return.

What happens if I return with less than a full tank?

A $30 fee is charged if the UTV is returned with less than a full tank of gas.

How do I get the BioBay discount?

After booking the UTV you’ll receive a confirmation receipt with a special booking link that generates an exclusive promo code for 10% off Fun Brothers Bioluminescent Bay Tours.

Explore Vieques by UTV: Kawasaki Mule & Night BioBay Combo

On a small, salt-sweet island off the east coast of Puerto Rico, Vieques offers one of the simplest and most rewarding ways to see its coast: a 2 Passenger Kawasaki Mule UTV rental that turns island transit into an all-day exploration machine. Operated out of Vieques, Puerto Rico, this rental pairs daytime off-road freedom with an evening visit to the luminous BioBay, and the operator includes a 10% discount on Fun Brothers Bioluminescent Bay Tours when you book the UTV.

The Kawasaki Mule is compact enough for narrow coastal tracks and rugged enough for sandy backroads, so you can move from mangrove-lined estuaries to open beaches without breaking the rhythm of the day. Drive toward wind-scoured headlands to find low coral ledges, white sand coves, and stands of coastal scrub—key features that define Vieques’ shoreline—and stop where you like to watch brown pelicans hunting or terns wheel over surf. The island’s geology is a mix of beach sediment, shallow reefs, and exposed limestone outcrops that shape small coves and protective bays.

Practical details matter here: drivers must be at least 21 with a valid driver’s license; Puerto Rican law requires passengers to be 10 or older, and no more than two people may ride at a time. Rentals operate with set return windows and a security deposit, and you’ll receive a confirmation with a promo link to claim your BioBay discount. A 24-hour rental must be returned on the exact hour, and there’s a modest refueling fee if you return with less than a full tank.

Why this experience stands out is simple: Vieques is simultaneously quiet and vivid. The daytime ride is kinetic and tactile—salt spray on your face, the low rumble of the Mule, the freedom to follow a sandy track to a small, nearly empty beach. After dark, that same coastline becomes otherworldly as the bay lights up with microscopic bioluminescence. The contrast between high-energy exploration and the hush of glowing water is uniquely Vieques.

For visitors staying in Isabel Segunda or exploring the island’s rural roads, the UTV is an efficient way to see more in a day, and the linked BioBay tour makes one full loop from daylight to dark magic. Respect local rules, secure your deposit, pack sunscreen and water, and use the rental as your ticket to the island’s most memorable moments. Plan to return rentals during operating hours (9:00 AM – 4:00 PM) and carry a headlamp or small red-filter flashlight for camp tasks. Avoid lotions or insect repellent before your BioBay tour to protect the bioluminescence, and call 787-435-9372 if you don’t see availability for desired dates. Treat the island gently—pack out trash and keep to established tracks. Enjoy responsibly.