Southwest of the airport and Agat just off the west coast of Guam, the snorkeling at Anae Island provides divers with beautiful rock formations and diverse marine life. The best snorkeling is about an hour before high tide. The Anae Island snorkeling is only boat-accessible.
To reach the Guam snorkeling by air, fly into the Antonio B. Won Pat International Airport (GUM) which is located in the middle of the island.
While the dry season is typically January to June, the best snorkeling on Guam is during the months of May through August. The highest water clarity can be found if there is an incoming tide during the morning. While snorkeling in Guam, keep an eye out for green sea turtles, hawksbill turtles and dozens of species of sharks. Overall, there are over 700 species of reef fish and over 300 species of coral on the fringing reefs. Most snorkelers stay within the fringing reef since there is usually a strong current just beyond the reef. There are a couple lesser well-known snorkeling dive sites off the east coast of Guam, which should only be attempted during the local summer months and then only with extreme care.
Overall, Anae Island is the 15th most popular snorkel dive spot of all 17 snorkeling dives in Guam.