Biking in Vieques
Concierge.com's insider take:
Vieques's rugged mountaintop and seaside trails make for supremely challenging off-road terrain. You can rent mountain bikes from Black Beard Sports (101 Munoz Rivera; 787-741-1892) or from Vieques Adventure Company (787-692-9162). The latter also runs bike tours for both newbies and experts on mud flats, winding trails, and beaches nearly unreachable by foot. Half-day tours start at $75 per person.