This randomized controlled trial evaluates the efficacy of a culturally adapted virtual reality (VR) nature therapy intervention aimed at improving the quality of life (QOL) and emotional well-being of palliative patients and their family caregivers in Saudi Arabia. The study involves immersive VR sessions depicting natural environments, including Saudi-specific landscapes, delivered to patient-caregiver dyads at home. Outcomes include self-reported QOL measures, psychophysiological parameters, and qualitative feedback.