On the northwest side of Saipan, the snorkeling in Lagunan Tanapag is best known for the accessible World War II era wrecks. There are eight World War II dive sites including planes and mini-subs to observe in clear waters from 20 to 50 feet deep. While snorkeling Lagunan Tanapag (aka Tanapag Lagoon), you may encounter snapper, goatfish, eagle rays and possibly resting white-tipped reef sharks.
To reach the Saipan snorkeling by air, fly into Saipan International Airport (SPN) located on the southern end of the island. It is a five hour flight from Hong Kong or a 40 minute flight from Guam.
While January to April is considered to offer the best tourist weather, the best time of year for snorkeling on Saipan is from June to August. Saipan is located outside of the typical typhoon belt, so the reefs are nearly pristine and undamaged.
Overall, Lagunan Tanapag is the 3rd most popular snorkel dive spot of all 5 snorkeling dives in Northern Mariana Islands.