Mona Passage Lighthouse Keepers’ Supply Road

Mona Island isn’t for tourists—it’s 22 square miles of thorny scrub, venomous snakes, and terrain that’ll humble any rig stupid enough to think it’s conquered Caribbean off-roading. The old supply road from Playa de Pájaros to Faro de Mona cuts straight across the island’s plateau, following the route lighthouse keepers used to haul diesel fuel and provisions to the automated beacon. Sharp limestone outcrops puncture tires like thumbtacks, while the endemic boa constrictors remind you this island operates by different rules.

This is expert-level terrain that demands beadlock wheels, heavy-duty skid plates, and enough spare parts to rebuild your suspension. The 150-year-old lighthouse at trail’s end offers commanding views of the Mona Passage—the same treacherous waters that claimed hundreds of ships before modern navigation. Access requires advance permits and chartered boat transport from Mayagüez, making this one of the Caribbean’s most exclusive off-road experiences. Pack everything you need for several days, because when things go wrong out here, you’re truly on your own.