Nan Madol is reached by boat from the main town of Kolonia about 45 minutes away. It’s a full day boat tour which includes a visit to the spectacular Keprohi Waterfall and snorkeling in the lagoon.
A 20–minute ride out of Kolonia takes you to the Nanpil River where further along are the spectacular Liduduhniap Twin Waterfalls, complete with thatched huts where you can picnic in a jungle setting.
A day trip to privately owned Black Coral Island in the lagoon is the perfect way to safely snorkel the reef and, for a family day, visit Langer island with its simple cottages where visitors can stay overnight. In Kolonia, you can see the Spanish Wall, built in 1889 as a boundary for Fort Alphonso XII. Nearby is the Catholic Mission Bell Tower, all that remains of the old German church torn down by the Japanese during WWII.
Also, take a stroll into the Polynesian village and watch the craftsmen whittle ornaments from locally grown ivory seed. Most tours operate from Kolonia, and many of the waterfalls and areas of historical and ecological importance can only be reached by guided tour.