Getting there & away
Puerto Rican Port Authority ferries travel between Fajardo and Culebra thrice daily. The high-speed passenger ferry takes about an hour and a half. Round-trip passenger fares are $4.50. Boats leave Fajardo daily at 9am, 3pm and 7pm, and Culebra at 6:30am, 1pm and 5pm. The cargo ferry (small/large car $15/19) takes two hours.
To confirm the schedule and to make reservations (required for vehicles), call the Puerto Rican Port Authority Culebra office (787-742-3161; ferry dock, Dewey; 8-11am & 1-3pm Mon-Fri); Fajardo office 787-863-0705, car reservations 800-981-2005; 8-11am & 1-3pm Mon-Fri). Note that neither of these offices is great at answering their phones. So it goes.
Culebra gets excellent air service from San Juan and Fajardo on the commuter carriers that also serve Vieques: Isla Nena Air Service (787-812-5144; www.islanena.8m.com), Vieques Air Link (787-741-8331; www.vieques-island.com/val) and Air Flamenco (787-724-1818; www.airflamenco.net). There are at least five flights a day to/from San Juan’s Isla Grande and Luis Muñoz Marín (LMM) airports (from $95), and more flights a day to/from Fajardo (from $50). Isla Nena Air Service flies once a day between Culebra and Vieques ($35 one way).