Does anyone know if I need to pre-purchase tickets for the 4:30pm ferry to Vieques on a Tuesday? There are 4 of us traveling. The other couple won't arrive into San Juan until 12:30pm which means we probably won't be in Fajardo until 2pm. I am worried that tickets for the 4:30pm ferry to Vieques will be sold out. I've been warned about taking the 8pm ferry because it's unreliable. I've been calling the ferry office all week but as others have said, no one picks up the phone there.