1. Oahu’s North Shore is a popular destination for surfers due to its large waves and pristine beaches. The North Shore is also home to several world-famous surf competitions, such as the Vans Triple Crown of Surfing. In addition, the area is known for its laid-back vibe, local food, and rural charm. Visitors can explore the quaint towns of Haleiwa and Waialua, and enjoy a variety of outdoor activities such as hiking, horseback riding, and snorkeling.

2. There is no official \"working time\" for the North Shore as it is a region, not a specific attraction. However, many businesses in the area operate during regular business hours. The phone number for the North Shore Chamber of Commerce is (808) 637-4558.

3. Admission to most beaches and outdoor areas on the North Shore is free. Visitors can access the area by car, bus, or shuttle service. The public transportation system on the island is called \"TheBus\" and the fare is $2.75 per ride. There are also several private shuttle services that offer transportation to and from the North Shore, such as Go Hawaii Transportation (808-797-7950) and Roberts Hawaii (808-831-1555).