Chek Jawa and the Mega Marine Survey are featured in Nature of a City a Channel NewsAsia documentary.
Chek Jawa (8:40 - 14:17)
There's also a brief feature of the Mega Marine Survey and the Southern Expedition (14:18 - 19:00) with Dr Tan Koh Siang speaking during a dredging survey.
entire documentary online on Channel NewsAsia
Thanks to Rene Ong for highlighting this clip.