09:00~17:00Ritidian Point, located at the northern tip of Guam, boasts the most tranquil white-sand beaches Guam has to offer. Now the site of the Guam National Wildlife Refuge, Ritidian is a protected sanctuary for wildlife. However, visitors are welcome to use the park's facilities for picnics and swimming. The park is open from 8:30am to 5:00pm daily and is worth a visit. Keep in mind this is a refuge and taking coral or plants is prohibited. Also beware that life guards are not on duty so exercise caution when you enter the water.