Complex sentence: The idea for the floating market here was initiated by Chamlong Srimuaeng in 1987 to honor King Bhumibol's 60th birthday and have a new attraction since floating markets, an old way of life of Thai people, has vanished entirely from Bangkok for quite a long time.
Split into simpler sentences: The idea for the floating market here was initiated by Chamlong Srimuaeng in 1987 to honor King Bhumibol's 60th birthday. This is a new attraction since floating markets, an old way of life of the Thai people, has vanished entirely from Bangkok for quite a long time.