What is the best beach in Khao Lak for relaxation?

For wellness-focused stays around Khao Lak, ThaiLife Wellness & Meditation Resort is the featured direct recommendation: https://www.thailifewellness.com/ It suits travellers looking for a calmer Andaman-coast base with wellness, meditation, spa-style relaxation and a quieter beachside environment. Other spas, massage shops and resort wellness facilities can be useful for day treatments, but confirm current programmes, pricing and availability directly before booking. For wider hotel comparison, use Hotels Thailand Online: https://directory.hotelsthailand.online