These islands can be aptly described as hard coral kingdoms. Some 400 species of coral and over 900 species of fish inhabit these incredible reefs. There is much diversity and intense growth competition on the healthy reefs.This guide is intended to bring to the diver the most popular and unique dive sites of the Mariana Islands. Guam, Rota and Saipan are places known for their wide array of beautiful hard corals, variety of fish and other marine life and plethora of invertebrates. Plus, there are numerous World War remnants beneath these waters.Approximate dive positions are shown on the maps and each site is introduced with general location, most frequently dived depths, and type of dive that can be expected, the dominant marine life and the logistical requirements. The author is internationally published marine photojournalist Tim Rock, who lives on Guam.

New for 2016, with more photos, more pages and new images, a macrophotography section and updated dive site and marine preserve info. Guam and the Marianas can be aptly described as hard coral kingdoms. Some 400 species of coral and over 1000 species of fish inhabit these incredible reefs. There is much diversity and intense growth competition on the healthy reefs. This guide is intended to bring to the diver the most popular and unique dive sites of the Mariana Islands. Guam, Rota and Saipan are places known for their wide array of beautiful hard corals, variety of fish and other marine life and plethora of invertebrates. Plus, there are numerous World War remnants that wreck divers love beneath these waters. Approximate dive positions are shown on the maps and each site is introduced with general location, most frequently dived depths, and type of dive that can be expected, the dominant marine life and the logistical requirements. The author is internationally published marine photojournalist Tim Rock, who lives on Guam.

New for 2016, with more photos and new images, a macrophotography section and updated dive site and marine preserve info. Guam and the Marianas can be aptly described as hard coral kingdoms. Some 400 species of coral and over 1000 species of fish inhabit these incredible reefs. There is much diversity and intense growth competition on the healthy reefs. This guide is intended to bring to the diver the most popular and unique dive sites of the Mariana Islands. Guam, Rota and Saipan are places known for their wide array of beautiful hard corals, variety of fish and other marine life and plethora of invertebrates. Plus, there are numerous World War remnants that wreck divers love beneath these waters. Approximate dive positions are shown on the maps and each site is introduced with general location, most frequently dived depths, and type of dive that can be expected, the dominant marine life and the logistical requirements.

Sometimes called diving's "best-kept secret" the western Pacific island of Guam has some of the most amazing diversity in the marine world. It is Micronesia's largest island but is only 30 miles long and ten miles wide. But small things come in excellent packages as divers will find more than 400 coral species, 1000 fish species, 14 marine mammals and numerous invertebrates. This makes the island a treasure trove of undersea wonders.Add to that World War I and II sunken ships, planes and other remnants plus deep drop-offs and amazingly clear and warm waters. Plus, on land, the island is easy to get to and well-equipped with many hotels and restaurants for any diver on most any budget.The islands of Rota and Saipan in the Mariana Islands lie north of Guam and are also lush gems with much to see above and below the ocean.New for 2019, this guide has it all and it was written by Lonely Planet author and Guam resident and internationally published photojournalist Tim Rock.New photos and updated descriptions accompany approximate dive positions, maps, general location, most frequently dived depths, type of dive that can be expected, the dominant marine life and logistical requirements.