Utila Bay Island - Diving Overview The Bay Islands are a part of the world’s second largest barrier reef system. The Bay Islands include Utila, Roatan and Guanaja, island groups off the coast of Honduras. There is a wide variety of wall diving at each island where walls can start at fifteen, forty, or sixty feet. The reefs along these walls have plenty of stony corals and colorful sponges. Diving opportunities can include a variety of choices consisting of dolphin dives, walls, volcanic tunnels, shallows, whale shark encounters and lots of dazzling soft corals and sponges. Canyons, ridges, and stunning walls rich in marine life can also be explored. Utila, being the smallest of the 3 Bay Islands has the most diversified diving with fringing reefs on the leeward side, deep colorful walls on the north, seamounts all around & wreck diving at the old airport. Utila is famous for its whale shark encounters. It is also the only island that rests on the edge of the Continental Shelf of Central America, producing dramatic deep walls on the north side. Underwater visibility is reduced during the rainy season, which is from November through January. The rest of the year you can expect sunshine and temperatures in 80s ?F (26 ?C). Storms from the north can blow and disrupt the diving but hurricanes are unusual here.