1. Understand Your Entry Status Before You Go: Puerto Rico is an unincorporated U.S. territory, so entering it is the same as entering the United States. You’ll need a valid U.S. visa or ESTA, and make sure your EVUS record is up to date if applicable.
2. Book Your Bioluminescent Bay Tour by Moon Phase: The glow is brightest around the new moon and dimmer around the full moon. Check the lunar calendar before booking your trip.
3. Reserve El Yunque Rainforest in Advance: Book your entry time for El Yunque (Cloud Forest) on Recreation.gov. Slots fill up quickly during holidays, and the waterfalls are most impressive right after rain.
4. Book Ferries and Flights to Offshore Islands Early: Flights and ferries to Vieques can sell out fast during peak season. Lock in your return trip as soon as your itinerary is set.
5. Factor in Taxes and Fees: Prices are listed pre-tax. There’s an 11.5% sales tax plus 10–15% service charges, and restaurants typically expect a 15–20% tip.
6. Carry Small Cash: Vendors in Old San Juan, lechón asado road stands, and ferry terminals often prefer cash. ATM fees are around $2–3 per transaction.
7. Renting a Car Is the Easiest Option: Public transport is limited outside San Juan. Airport car rentals offer good value, but check for AutoExpreso electronic toll packages.
8. Get Travel Insurance for Hurricane Season: If traveling between June and November, purchase insurance that covers flight delays and trip cancellations. Monitor weather forecasts before your trip.
9. Spanish Is the Main Language: Spanish dominates, so learning a few basic phrases helps a lot. English is widely spoken in tourist areas.
10. Power Outlets Are U.S. Standard: Puerto Rico uses 120V/60Hz American-style plugs. Bring an adapter if you’re traveling from overseas, and confirm your devices are voltage-compatible.

Additional Reminders

Puerto Rico’s healthcare system aligns with the U.S., with major emergency centers concentrated in San Juan. Offshore islands have only basic clinics, and serious cases may require air evacuation—make sure your insurance covers medical transport. Beach lifeguard coverage is limited; swim only in areas marked with flags. Old San Juan’s main streets are generally safe at night, but it’s still wise to go out with a companion. Locals are friendly to tourists, and hotel concierges or tourist information centers can help with any issues—English communication is not a problem.