Treasure Bay Bintan. A Gem of Possibilities. Treasure Bay is a 338-hectare waterfront resort city located on the Indonesian island of Bintan. The destination resort integrates wellness, leisure, cultural, residential and commercial real estate supported by infrastructure that adheres to international standards. Treasure Bay Bintan’s Crystal Lagoon is South-East Asia’s first man-made seawater lagoon at 6.3 hectares. Here, you will find an extensive range of recreational and sporting activities suitable for all ages from dawn till dusk. The lagoon’s specially filtered seawater is delicate on the skin and provide perfect water conditions all year round. Future development surrounding the lagoon promises a vibrant and exciting host of dining, spa, retail, entertainment and night-life options catering to all your holiday needs and desires.