The main tourist area is around Tumon Bay, which has a number of high-rise hotels and resorts similar to Waikiki Beach with an even larger percentage of Japanese tourists. Cheaper accommodations exist near the airport, especially around the village of Harmon.
Be aware that Harmon hotels tend to be on the seedier side since Harmon is a mixed industrial/residential neighborhood. Many of the flights scheduled through Guam to other locations (especially in Asia) often require an overnight layover, so plan ahead. Some hotels offer airport pickup, as taxis can be quite expensive.
Northern Region
The northern part of the island is a relatively flat limestone plateau and is comprised of two villages (Dedeo and Yigo) and the United States’ Andersen Air Force Base. Dededo is Guam’s most populous village. Highlights for visitors include the Guam National Wildlife Refuge Ritidian Unit, the Micronesia Mall, Two Lovers Point, parks, beaches and hiking trails. Dededo hosts a busy weekend flea market that attracts large crowds – vendors sell all kinds of items, local produce and tasty food.
Central Region
Central Guam is quite metropolitan. The island’s capitol of Hagåtña is the seat of government and features a historic walking path through the village. Tumon Bay is brimming with luxury hotels and high-end shopping. Destinations of interest here include: the Chamorro Village with its lively Wednesday Night Market; the historic Plaza de Espana and Dulce Nombre de Maria Cathedral-Basilica; plentiful beaches with water sports like parasailing, kite boarding, boating and personal watercraft. Local companies offer dolphin watching, diving, and fishing tours regularly. The most bustling nightlife is located in this region of the island – there are many bars, karaoke joints, and dance clubs up and down the Tumon strip. Shopping spots include Guam Premier Outlets and Agana Shopping Center. A new Guam Museum is currently under construction.
Southern Region
Guam’s southern end is mostly rural and picturesque – featuring a volcanic mountain range and rolling green hills. Chamorro customs are preserved at Inarajan’s Gef Pa’go Cultural Village; it features thatched huts and offers a picture of pre-World War II Guam. Visitors can learn to make a variety of crafts including woven items, rope, sea salt, coconut candy and coconut oil. Off the coast of Merizo and across a lagoon sits Cocos Island. Talofofo Bay’s black sand beaches are a beautiful contrast to the white sand found around the rest of the island. Hiking trails are plentiful, and lead to destinations like Upper and Lower Sigua Falls and an ancient Spanish bridge down in Cetti Bay. The War in the Pacific National Historic Park operates a visitor center near the main gate of US Naval Base Guam.