Cai Rong, Vietnam offers 1 beach perfect for sunbathing, surfing, swimming, and more. Cai Rong, Quang Ninh, Vietnam, is known for its proximity to Bai Tu Long Bay and the Cai Rong Port, which serves as a gateway to the beautiful islands and natural landscapes in the region. The best time to travel to Cai Rong, Vietnam, is from October to April, with average air temperatures around 20-25°C (68-77°F) and water temperatures approximately 24-28°C (75-82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!