This long reef extends farther than you'd expect. You can see all sorts of corals and other marine life on this diving site.
More information on skaphandrus.com http://www.skaphandrus.com/dive_locations/site/Trinidad+and+Tobago/Tobago/Anna_Reef
Address Trinidad & Tobago
Coordinates 11°13'43.5" N -60°46'27.505" E