Author: palmettoculebra (---.prtc.net)
Date: 06-06-10 08:00
The cargo ferry gives priority to commercial vehicles & Culebra residents. Having said that, normally, if you will have a rental car, it is in violation of most rental agreements to take your rental on the cargo boat.
Additionally, reservations have to be made in advance & for the month of July, many dates, especially holiday weekends (of which 3 out of 4 are long weekends) may already be booked.
I'd strongly advise against trying to bring a car. You can park in a secure lot in Fajardo or, even easier (as the lots will likely fill up in July, too as it is SUCH a busy ferry traffic month) fly as you have done previously.
Palmetto Guesthouse, Culebra