Da Nang is a vibrant coastal city in Vietnam known for its stunning sandy beaches like My Khe Beach, perfect for family relaxation and water activities. The city offers a blend of modern amenities and cultural experiences, with nearby attractions such as the Marble Mountains and the ancient town of Hoi An just a short drive away. October is a great time to visit as the weather is generally pleasant, making it ideal for beach lounging and exploring.

Phu Quoc Island is a tropical paradise known for its pristine white sandy beaches and crystal-clear turquoise waters, perfect for a relaxing family beach vacation. The island offers a mix of luxury resorts, family-friendly activities, and serene natural beauty to unwind and enjoy quality time together. October is a great time to visit as the weather is generally pleasant, making it ideal for beach lounging, swimming, and exploring local culture.

Nha Trang is a stunning coastal city in Vietnam known for its beautiful sandy beaches, clear turquoise waters, and vibrant marine life. It's perfect for a family looking to relax and enjoy beach activities, water sports, and fresh seafood. The city also offers a mix of cultural experiences and modern amenities, making it an ideal spot for a 10-day family vacation focused on relaxation.