AIA Thailand, Thailand's Tourism Authority, and Prao Group announce the 5th edition of "AIA One Billion Day 2026," a major health and lifestyle festival scheduled for November 21, 2026, in Hua Hin. The event combines an international-standard trail running race (UTMB Index certified, with distances from 5–50km), concert performances, wellness activities, and carnival entertainment. Previous year (2025) drew 4,600+ participants and raised funds for charity. The initiative supports AIA's "One Billion" mission to inspire healthier lives across Asia-Pacific by 2030 and promotes Hua Hin as a health-focused destination.