Southeast Asia refers to the 10 nations of Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Vietnam. The region includes many islands in the Indian and Pacific Oceans as well as mainland countries. It has a tropical climate with wet and dry seasons. Popular travel destinations like Thailand, Singapore, and Malaysia do not require visas for most visitors, while others offer visas on arrival. The culture is diverse with influences from China and India and the predominant religion is Islam.